[dev.regabi] all: merge master (ff0e93e) into dev.regabi

Conflicts:

- src/cmd/compile/internal/gc/walk.go

  gc/walk.go is changed in CL 290950 on the master branch but
  deleted in the dev.regabi branch and moved over to the walk
  package. This CL includes porting CL 290950 over to the new
  walk.

Merge List:

+ 2021-02-12 ff0e93ea31 doc/go1.16: note that package path elements beginning with '.' are disallowed
+ 2021-02-11 249da7ec02 CONTRIBUTORS: update for the Go 1.16 release
+ 2021-02-11 864d4f1c6b cmd/go: multiple small 'go help' fixes
+ 2021-02-11 26ceae85a8 spec: More precise wording in section on function calls.
+ 2021-02-11 930c2c9a68 cmd/go: reject embedded files that can't be packed into modules
+ 2021-02-11 e5b08e6d5c io/fs: allow backslash in ValidPath, reject in os.DirFS.Open
+ 2021-02-10 ed8079096f cmd/compile: mark concrete call of reflect.(*rtype).Method as REFLECTMETHOD
+ 2021-02-09 e9c9683597 cmd/go: suppress errors from 'go get -d' for packages that only conditionally exist
+ 2021-02-09 e0ac989cf3 archive/tar: detect out of bounds accesses in PAX records resulting from padded lengths
+ 2021-02-09 c9d6f45fec runtime/metrics: fix a couple of documentation typpos
+ 2021-02-09 cea4e21b52 io/fs: backslash is always a glob meta character
+ 2021-02-08 dc725bfb3c doc/go1.16: mention new vet check for asn1.Unmarshal

Change-Id: Ib28fffa7dfbff7f6cdbfaf4a304757fead7bbf19

22 files changed, 498 insertions, 55 deletions

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index cebc92f53f..ccbe4627f3 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -30,6 +30,7 @@ Aaron Bieber <deftly@gmail.com>
 Aaron Cannon <cannona@fireantproductions.com>
 Aaron France <aaron.l.france@gmail.com>
 Aaron Jacobs <jacobsa@google.com>
+Aaron Jensen <jensen.aaro@gmail.com>
 Aaron Kemp <kemp.aaron@gmail.com>
 Aaron Patterson <tenderlove@ruby-lang.org>
 Aaron Stein <aaronstein12@gmail.com>
@@ -71,9 +72,11 @@ Ahmet Alp Balkan <ahmetb@google.com>
 Ahmet Soormally <ahmet@mangomm.co.uk>
 Ahmy Yulrizka <yulrizka@gmail.com>
 Ahsun Ahmed <ahmed.ahsun@gmail.com>
+Aidan Coyle <packrat386@gmail.com>
 Aiden Scandella <ai@uber.com>
 Ainar Garipov <gugl.zadolbal@gmail.com>
 Aishraj Dahal <aishraj@users.noreply.github.com>
+Ajanthan Balachandran <balaajanthan@gmail.com>
 Akhil Indurti <aindurti@gmail.com>
 Akihiro Suda <suda.kyoto@gmail.com>
 Akshat Kumar <seed@mail.nanosouffle.net>
@@ -104,9 +107,11 @@ Alex Buchanan <buchanae@gmail.com>
 Alex Carol <alex.carol.c@gmail.com>
 Alex Gaynor <alex@alloy.us>
 Alex Harford <alex.harford@saucelabs.com>
+Alex Hays <alex.hays@leftfieldlabs.com>
 Alex Jin <toalexjin@gmail.com>
 Alex Kohler <alexjohnkohler@gmail.com>
 Alex Myasoedov <msoedov@gmail.com>
+Alex Opie <amtopie@gmail.com>
 Alex Plugaru <alex@plugaru.org> <alexandru.plugaru@gmail.com>
 Alex Schroeder <alex@gnu.org>
 Alex Sergeyev <abc@alexsergeyev.com>
@@ -119,6 +124,7 @@ Alexander F Rødseth <alexander.rodseth@appeartv.com>
 Alexander Greim <alexxx@iltempo.de>
 Alexander Guz <kalimatas@gmail.com>
 Alexander Kauer <alexander@affine.space>
+Alexander Klauer <Alexander.Klauer@googlemail.com>
 Alexander Kucherenko <alxkchr@gmail.com>
 Alexander Larsson <alexander.larsson@gmail.com>
 Alexander Lourier <aml@rulezz.ru>
@@ -150,16 +156,19 @@ Alexey Naidonov <alexey.naidyonov@gmail.com>
 Alexey Neganov <neganovalexey@gmail.com>
 Alexey Palazhchenko <alexey.palazhchenko@gmail.com>
 Alexey Semenyuk <alexsemenyuk88@gmail.com>
+Alexey Vilenskiy <bynovhack@gmail.com>
 Alexis Hildebrandt <surryhill@gmail.com>
 Alexis Hunt <lexer@google.com>
 Alexis Imperial-Legrand <ail@google.com>
 Ali Farooq <ali.farooq0@pm.me>
 Ali Rizvi-Santiago <arizvisa@gmail.com>
 Aliaksandr Valialkin <valyala@gmail.com>
+Alice Merrick <amerrick@google.com>
 Alif Rachmawadi <subosito@gmail.com>
 Allan Simon <allan.simon@supinfo.com>
 Allen Li <ayatane@google.com>
 Alok Menghrajani <alok.menghrajani@gmail.com>
+Alwin Doss <alwindoss84@gmail.com>
 Aman Gupta <aman@tmm1.net>
 Amarjeet Anand <amarjeetanandsingh@gmail.com>
 Amir Mohammad Saied <amir@gluegadget.com>
@@ -168,6 +177,8 @@ Amrut Joshi <amrut.joshi@gmail.com>
 An Long <aisk1988@gmail.com>
 An Xiao <hac@zju.edu.cn>
 Anand K. Mistry <anand@mistry.ninja>
+Ananya Saxena <ananyasaxena1@gmail.com>
+Anatol Pomozov <anatol.pomozov@gmail.com>
 Anders Pearson <anders@columbia.edu>
 Anderson Queiroz <contato@andersonq.eti.br>
 André Carvalho <asantostc@gmail.com>
@@ -199,6 +210,7 @@ Andrew G. Morgan <agm@google.com>
 Andrew Gerrand <adg@golang.org>
 Andrew Harding <andrew@spacemonkey.com>
 Andrew Jackura <ajackura@google.com>
+Andrew Kemm <andrewkemm@gmail.com>
 Andrew Louis <alouis@digitalocean.com>
 Andrew Lutomirski <andy@luto.us>
 Andrew Medvedev <andrew.y.medvedev@gmail.com>
@@ -216,6 +228,7 @@ Andrew Werner <andrew@upthere.com> <awerner32@gmail.com>
 Andrew Wilkins <axwalk@gmail.com>
 Andrew Williams <williams.andrew@gmail.com>
 Andrew Z Allen <me@andrewzallen.com>
+Andrey Bokhanko <andreybokhanko@gmail.com>
 Andrey Mirtchovski <mirtchovski@gmail.com>
 Andrey Petrov <andrey.petrov@shazow.net>
 Andrii Soldatenko <andrii.soldatenko@gmail.com>
@@ -230,6 +243,7 @@ Andy Maloney <asmaloney@gmail.com>
 Andy Pan <panjf2000@gmail.com>
 Andy Walker <walkeraj@gmail.com>
 Andy Wang <cbeuw.andy@gmail.com>
+Andy Williams <andy@andy.xyz>
 Andzej Maciusovic <andzej.maciusovic@gmail.com>
 Anfernee Yongkun Gui <anfernee.gui@gmail.com>
 Angelo Bulfone <mbulfone@gmail.com>
@@ -274,6 +288,7 @@ Arne Hormann <arnehormann@gmail.com>
 Arnout Engelen <arnout@bzzt.net>
 Aron Nopanen <aron.nopanen@gmail.com>
 Artem Alekseev <artem.alekseev@intel.com>
+Artem Khvastunov <artem.khvastunov@jetbrains.com>
 Artem Kolin <artemkaxboy@gmail.com>
 Arthur Fabre <arthur@arthurfabre.com>
 Arthur Khashaev <arthur@khashaev.ru>
@@ -281,8 +296,10 @@ Artyom Pervukhin <artyom.pervukhin@gmail.com>
 Arvindh Rajesh Tamilmani <art@a-30.net>
 Ashish Gandhi <ag@ashishgandhi.org>
 Asim Shankar <asimshankar@gmail.com>
+Assel Meher <asselmeher@gmail.com>
 Atin Malaviya <amalaviy@akamai.com>
 Ato Araki <ato.araki@gmail.com>
+Atsushi Toyama <atsushi.tohyama.160.333@gmail.com>
 Audrey Lim <audreylh@gmail.com>
 Audrius Butkevicius <audrius.butkevicius@gmail.com>
 Augusto Roman <aroman@gmail.com>
@@ -291,6 +308,7 @@ Aurélien Rainone <aurelien.rainone@gmail.com>
 Aurélio A. Heckert <aurium@gmail.com>
 Austin Clements <austin@google.com> <aclements@csail.mit.edu>
 Avi Flax <avi@timehop.com>
+Aviv Klasquin Komissar <avivklas@gmail.com>
 awaw fumin <awawfumin@gmail.com>
 Awn Umar <awn@cryptolosophy.io>
 Axel Wagner <axel.wagner.hh@googlemail.com>
@@ -298,6 +316,7 @@ Ayan George <ayan@ayan.net>
 Ayanamist Yang <ayanamist@gmail.com>
 Ayke van Laethem <aykevanlaethem@gmail.com>
 Aymerick Jéhanne <aymerick@jehanne.org>
+Ayzat Sadykov <ayzat.ziko.93@gmail.com>
 Azat Kaumov <kaumov.a.r@gmail.com>
 Baiju Muthukadan <baiju.m.mail@gmail.com>
 Balaram Makam <bmakam.qdt@qualcommdatacenter.com>
@@ -308,10 +327,12 @@ Bartosz Grzybowski <melkorm@gmail.com>
 Bartosz Oler <brtsz@google.com>
 Bastian Ike <bastian.ike@gmail.com>
 Ben Burkert <ben@benburkert.com>
+Ben Cartwright-Cox <Ben@Benjojo.co.uk>
 Ben Eitzen <eitzenb@golang.org>
 Ben Fried <ben.fried@gmail.com>
 Ben Haines <bhainesva@gmail.com>
 Ben Hoyt <benhoyt@gmail.com>
+Ben Kraft <benkraft@khanacademy.org>
 Ben Laurie <ben@links.org> <benl@google.com>
 Ben Lubar <ben.lubar@gmail.com>
 Ben Lynn <benlynn@gmail.com>
@@ -319,6 +340,7 @@ Ben Olive <sionide21@gmail.com>
 Ben Schwartz <bemasc@google.com>
 Ben Shi <powerman1st@163.com>
 Ben Toews <mastahyeti@gmail.com>
+Benjamin Barenblat <bbaren@google.com>
 Benjamin Black <b@b3k.us>
 Benjamin Cable <cable.benjamin@gmail.com>
 Benjamin Hsieh <tanookiben@users.noreply.github.com>
@@ -356,6 +378,7 @@ Bobby Powers <bobbypowers@gmail.com>
 Boqin Qin <bobbqqin@gmail.com>
 Boris Nagaev <nagaev@google.com>
 Borja Clemente <borja.clemente@gmail.com>
+Boshi Lian <bolian@microsoft.com>
 Brad Burch <brad.burch@gmail.com>
 Brad Erickson <bderickson@gmail.com>
 Brad Fitzpatrick <bradfitz@golang.org> <bradfitz@gmail.com>
@@ -368,10 +391,12 @@ Bradford Lamson-Scribner <brad.lamson@gmail.com>
 Bradley Falzon <brad@teambrad.net>
 Brady Catherman <brady@gmail.com>
 Brady Sullivan <brady@bsull.com>
+Branden J. Brown <zephyrtronium@gmail.com>
 Brandon Bennett <bbennett@fb.com>
 Brandon Gilmore <varz@google.com>
 Brandon Philips <brandon@ifup.org>
 Brandon Ryan <bjryan19@gmail.com>
+Brave Cow <rsr715@gmail.com>
 Brayden Cloud <bcloud@google.com>
 Brendan Daniel Tracey <tracey.brendan@gmail.com>
 Brendan O'Dea <bod@golang.org>
@@ -389,6 +414,7 @@ Brian Slesinsky <skybrian@google.com>
 Brian Smith <ohohvi@gmail.com>
 Brian Starke <brian.starke@gmail.com>
 Bryan Alexander <Kozical@msn.com>
+Bryan Boreham <bjboreham@gmail.com>
 Bryan C. Mills <bcmills@google.com>
 Bryan Chan <bryan.chan@ca.ibm.com>
 Bryan Ford <brynosaurus@gmail.com>
@@ -407,6 +433,7 @@ Carl Mastrangelo <notcarl@google.com>
 Carl Shapiro <cshapiro@google.com> <cshapiro@golang.org>
 Carlisia Campos <carlisia@grokkingtech.io>
 Carlo Alberto Ferraris <cafxx@strayorange.com>
+Carlos Alexandro Becker <caarlos0@gmail.com>
 Carlos Amedee <carlos@golang.org>
 Carlos Castillo <cookieo9@gmail.com>
 Carlos Cirello <uldericofilho@gmail.com>
@@ -422,6 +449,7 @@ Casey Callendrello <squeed@gmail.com>
 Casey Marshall <casey.marshall@gmail.com>
 Catalin Nicutar <cnicutar@google.com>
 Catalin Patulea <catalinp@google.com>
+Cathal O'Callaghan <cathalsocallaghan@gmail.com>
 Cedric Staub <cs@squareup.com>
 Cezar Sá Espinola <cezarsa@gmail.com>
 Chad Rosier <mrosier.qdt@qualcommdatacenter.com>
@@ -434,10 +462,14 @@ Charles Kenney <charlesc.kenney@gmail.com>
 Charles L. Dorian <cldorian@gmail.com>
 Charles Lee <zombie.fml@gmail.com>
 Charles Weill <weill@google.com>
+Charlotte Brandhorst-Satzkorn <catzkorn@gmail.com>
 Chauncy Cullitan <chauncyc@google.com>
+Chen Zhidong <njutczd@gmail.com>
 Chen Zhihan <energiehund@gmail.com>
 Cherry Zhang <cherryyz@google.com>
 Chew Choon Keat <choonkeat@gmail.com>
+Chiawen Chen <golopot@gmail.com>
+Chirag Sukhala <cchirag77@gmail.com>
 Cholerae Hu <choleraehyq@gmail.com>
 Chotepud Teo <AlexRouSg@users.noreply.github.com>
 Chris Ball <chris@printf.net>
@@ -460,6 +492,8 @@ Chris Raynor <raynor@google.com>
 Chris Roche <rodaine@gmail.com>
 Chris Smith <chrsmith@users.noreply.github.com>
 Chris Stockton <chrisstocktonaz@gmail.com>
+Chris Taylor <taylorza@gmail.com>
+Chris Waldon <christopher.waldon.dev@gmail.com>
 Chris Zou <chriszou@ca.ibm.com>
 Christian Alexander <christian@linux.com>
 Christian Couder <chriscool@tuxfamily.org>
@@ -467,6 +501,7 @@ Christian Himpel <chressie@googlemail.com> <chressie@gmail.com>
 Christian Muehlhaeuser <muesli@gmail.com>
 Christian Pellegrin <chri@evolware.org>
 Christian R. Petrin <christianpetrin@gmail.com>
+Christian Svensson <blue@cmd.nu>
 Christine Hansmann <chhansmann@gmail.com>
 Christoffer Buchholz <christoffer.buchholz@gmail.com>
 Christoph Blecker <admin@toph.ca>
@@ -474,6 +509,7 @@ Christoph Hack <christoph@tux21b.org>
 Christopher Cahoon <chris.cahoon@gmail.com>
 Christopher Guiney <chris@guiney.net>
 Christopher Henderson <chris@chenderson.org>
+Christopher Hlubek <christopher.hlubek@networkteam.com>
 Christopher Koch <chrisko@google.com>
 Christopher Loessl <cloessl+github@gmail.com>
 Christopher Nelson <nadiasvertex@gmail.com>
@@ -506,7 +542,10 @@ Costin Chirvasuta <ctin@google.com>
 Craig Citro <craigcitro@google.com>
 Cristian Staretu <unclejacksons@gmail.com>
 Cuihtlauac ALVARADO <cuihtlauac.alvarado@orange.com>
+Cuong Manh Le <cuong@orijtech.com>
+Curtis La Graff <curtis@lagraff.me>
 Cyrill Schumacher <cyrill@schumacher.fm>
+Dai Jie <gzdaijie@gmail.com>
 Daisuke Fujita <dtanshi45@gmail.com>
 Daisuke Suzuki <daisuzu@gmail.com>
 Daker Fernandes Pinheiro <daker.fernandes.pinheiro@intel.com>
@@ -525,12 +564,14 @@ Dan Peterson <dpiddy@gmail.com>
 Dan Pupius <dan@medium.com>
 Dan Scales <danscales@google.com>
 Dan Sinclair <dan.sinclair@gmail.com>
+Daniel Cohen <dcohen@gatech.edu>
 Daniel Cormier <danielc@knowbe4.com>
 Daniël de Kok <me@danieldk.eu>
 Daniel Fleischman <danielfleischman@gmail.com>
 Daniel Ingram <ingramds@appstate.edu>
 Daniel Johansson <dajo2002@gmail.com>
 Daniel Kerwin <d.kerwin@gini.net>
+Daniel Kessler <dkess@google.com>
 Daniel Krech <eikeon@eikeon.com>
 Daniel Kumor <rdkumor@gmail.com>
 Daniel Langner <s8572327@gmail.com>
@@ -538,10 +579,12 @@ Daniel Lidén <daniel.liden.87@gmail.com>
 Daniel Lublin <daniel@lublin.se>
 Daniel Mangum <georgedanielmangum@gmail.com>
 Daniel Martí <mvdan@mvdan.cc>
+Daniel McCarney <cpu@letsencrypt.org>
 Daniel Morsing <daniel.morsing@gmail.com>
 Daniel Nadasi <dnadasi@google.com>
 Daniel Nephin <dnephin@gmail.com>
 Daniel Ortiz Pereira da Silva <daniel.particular@gmail.com>
+Daniel S. Fava <danielsfava@gmail.com>
 Daniel Skinner <daniel@dasa.cc>
 Daniel Speichert <daniel@speichert.pl>
 Daniel Theophanes <kardianos@gmail.com>
@@ -563,6 +606,7 @@ Dave Cheney <dave@cheney.net>
 Dave Day <djd@golang.org>
 Dave Grijalva <dgrijalva@ngmoco.com>
 Dave MacFarlane <driusan@gmail.com>
+Dave Pifke <dave@pifke.org>
 Dave Russell <forfuncsake@gmail.com>
 David Anderson <danderson@google.com>
 David Barnett <dbarnett@google.com>
@@ -593,6 +637,7 @@ David McLeish <davemc@google.com>
 David Ndungu <dnjuguna@gmail.com>
 David NewHamlet <david@newhamlet.com>
 David Presotto <presotto@gmail.com>
+David Qu <davidqu12345@gmail.com>
 David R. Jenni <david.r.jenni@gmail.com>
 David Sansome <me@davidsansome.com>
 David Stainton <dstainton415@gmail.com>
@@ -642,6 +687,7 @@ Diwaker Gupta <diwakergupta@gmail.com>
 Dmitri Goutnik <dgoutnik@gmail.com>
 Dmitri Popov <operator@cv.dp-net.com>
 Dmitri Shuralyov <dmitshur@golang.org> <dmitri@shuralyov.com>
+Dmitrii Okunev <xaionaro@gmail.com>
 Dmitriy Cherchenko <dcherchenko@gmail.com>
 Dmitriy Dudkin <dudkin.dmitriy@gmail.com>
 Dmitriy Shelenin <deemok@googlemail.com> <deemok@gmail.com>
@@ -655,6 +701,7 @@ Dmitry Yakunin <nonamezeil@gmail.com>
 Doga Fincan <doga@icloud.com>
 Domas Tamašauskas <puerdomus@gmail.com>
 Domen Ipavec <domen@ipavec.net>
+Dominic Della Valle <ddvpublic@Gmail.com>
 Dominic Green <dominicgreen1@gmail.com>
 Dominik Honnef <dominik.honnef@gmail.com>
 Dominik Vogt <vogt@linux.vnet.ibm.com>
@@ -696,6 +743,7 @@ Elias Naur <mail@eliasnaur.com> <elias.naur@gmail.com>
 Elliot Morrison-Reed <elliotmr@gmail.com>
 Ellison Leão <ellisonleao@gmail.com>
 Emerson Lin <linyintor@gmail.com>
+Emil Bektimirov <lefelys@gmail.com>
 Emil Hessman <emil@hessman.se>
 Emil Mursalimov <mursalimovemeel@gmail.com>
 Emilien Kenler <hello@emilienkenler.com>
@@ -760,6 +808,7 @@ Fatih Arslan <fatih@arslan.io>
 Fazal Majid <majid@apsalar.com>
 Fazlul Shahriar <fshahriar@gmail.com>
 Federico Bond <federicobond@gmail.com>
+Federico Guerinoni <guerinoni.federico@gmail.com>
 Federico Simoncelli <fsimonce@redhat.com>
 Fedor Indutny <fedor@indutny.com>
 Fedor Korotkiy <dartslon@gmail.com>
@@ -781,6 +830,7 @@ Florin Patan <florinpatan@gmail.com>
 Folke Behrens <folke@google.com>
 Ford Hurley <ford.hurley@gmail.com>
 Francesc Campoy <campoy@golang.org>
+Francesco Guardiani <francescoguard@gmail.com>
 Francesco Renzi <rentziass@gmail.com>
 Francisco Claude <fclaude@recoded.cl>
 Francisco Rojas <francisco.rojas.gallegos@gmail.com>
@@ -811,8 +861,10 @@ Gabriel Russell <gabriel.russell@gmail.com>
 Gareth Paul Jones <gpj@foursquare.com>
 Garret Kelly <gdk@google.com>
 Garrick Evans <garrick@google.com>
+Garry McNulty <garrmcnu@gmail.com>
 Gary Burd <gary@beagledreams.com> <gary.burd@gmail.com>
 Gary Elliott <garyelliott@google.com>
+Gaurav Singh <gaurav1086@gmail.com>
 Gaurish Sharma <contact@gaurishsharma.com>
 Gautham Thambidorai <gautham.dorai@gmail.com>
 Gauthier Jolly <gauthier.jolly@gmail.com>
@@ -827,6 +879,7 @@ Georg Reinke <guelfey@gmail.com>
 George Gkirtsou <ggirtsou@gmail.com>
 George Hartzell <hartzell@alerce.com>
 George Shammas <george@shamm.as> <georgyo@gmail.com>
+George Tsilias <tsiliasg@gmail.com>
 Gerasimos (Makis) Maropoulos <kataras2006@hotmail.com>
 Gerasimos Dimitriadis <gedimitr@gmail.com>
 Gergely Brautigam <skarlso777@gmail.com>
@@ -862,6 +915,7 @@ GitHub User @frennkie (6499251) <mail@rhab.de>
 GitHub User @geedchin (11672310) <geedchin@gmail.com>
 GitHub User @GrigoriyMikhalkin (3637857) <grigoriymikhalkin@gmail.com>
 GitHub User @hengwu0 (41297446) <41297446+hengwu0@users.noreply.github.com>
+GitHub User @hitzhangjie (3725760) <hit.zhangjie@gmail.com>
 GitHub User @itchyny (375258) <itchyny@hatena.ne.jp>
 GitHub User @jinmiaoluo (39730824) <jinmiaoluo@icloud.com>
 GitHub User @jopbrown (6345470) <msshane2008@gmail.com>
@@ -873,6 +927,7 @@ GitHub User @LotusFenn (13775899) <fenn.lotus@gmail.com>
 GitHub User @ly303550688 (11519839) <yang.liu636@gmail.com>
 GitHub User @madiganz (18340029) <zacharywmadigan@gmail.com>
 GitHub User @maltalex (10195391) <code@bit48.net>
+GitHub User @markruler (38225900) <csu0414@gmail.com>
 GitHub User @Matts966 (28551465) <Matts966@users.noreply.github.com>
 GitHub User @micnncim (21333876) <micnncim@gmail.com>
 GitHub User @mkishere (224617) <224617+mkishere@users.noreply.github.com>
@@ -886,6 +941,8 @@ GitHub User @ramenjuniti (32011829) <ramenjuniti@gmail.com>
 GitHub User @saitarunreddy (21041941) <saitarunreddypalla@gmail.com>
 GitHub User @shogo-ma (9860598) <Choroma194@gmail.com>
 GitHub User @skanehira (7888591) <sho19921005@gmail.com>
+GitHub User @soolaugust (10558124) <soolaugust@gmail.com>
+GitHub User @surechen (7249331) <surechen17@gmail.com>
 GitHub User @tatsumack (4510569) <tatsu.mack@gmail.com>
 GitHub User @tell-k (26263) <ffk2005@gmail.com>
 GitHub User @tennashi (10219626) <tennashio@gmail.com>
@@ -908,6 +965,7 @@ Gordon Tyler <gordon@doxxx.net>
 Graham King <graham4king@gmail.com>
 Graham Miller <graham.miller@gmail.com>
 Grant Griffiths <ggp493@gmail.com>
+Green Lightning <GreenLightning.git@googlemail.com>
 Greg Poirier <greg.istehbest@gmail.com>
 Greg Steuck <gnezdo+github@google.com>
 Greg Thelen <gthelen@google.com>
@@ -920,6 +978,7 @@ Guilherme Garnier <guilherme.garnier@gmail.com>
 Guilherme Goncalves <guilhermeaugustosg@gmail.com>
 Guilherme Rezende <guilhermebr@gmail.com>
 Guillaume J. Charmes <guillaume@charmes.net>
+Guillaume Sottas <guillaumesottas@gmail.com>
 Günther Noack <gnoack@google.com>
 Guobiao Mei <meiguobiao@gmail.com>
 Guoliang Wang <iamwgliang@gmail.com>
@@ -936,6 +995,8 @@ HAMANO Tsukasa <hamano@osstech.co.jp>
 Han-Wen Nienhuys <hanwen@google.com>
 Hang Qian <hangqian90@gmail.com>
 Hanjun Kim <hallazzang@gmail.com>
+Hanlin Shi <shihanlin9@gmail.com>
+Haoran Luo <haoran.luo@chaitin.com>
 Haosdent Huang <haosdent@gmail.com>
 Harald Nordgren <haraldnordgren@gmail.com>
 Hari haran <hariharan.uno@gmail.com>
@@ -950,9 +1011,11 @@ Håvard Haugen <havard.haugen@gmail.com>
 He Liu <liulonnie@gmail.com>
 Hector Chu <hectorchu@gmail.com>
 Hector Martin Cantero <hector@marcansoft.com>
+Hein Khant Zaw <heinkhantzaw1@gmail.com>
 Henning Schmiedehausen <henning@schmiedehausen.org>
 Henrik Edwards <henrik.edwards@gmail.com>
 Henrik Hodne <henrik@hodne.io>
+Henrique Vicente <henriquevicente@gmail.com>
 Henry Adi Sumarto <henry.adisumarto@gmail.com>
 Henry Bubert <google@mindeco.de>
 Henry Chang <mr.changyuheng@gmail.com>
@@ -969,6 +1032,7 @@ Hironao OTSUBO <motemen@gmail.com>
 Hiroshi Ioka <hirochachacha@gmail.com>
 Hitoshi Mitake <mitake.hitoshi@gmail.com>
 Holden Huang <ttyh061@gmail.com>
+Songlin Jiang <hollowman@hollowman.ml>
 Hong Ruiqi <hongruiqi@gmail.com>
 Hongfei Tan <feilengcui008@gmail.com>
 Horacio Duran <horacio.duran@gmail.com>
@@ -990,6 +1054,7 @@ Ian Haken <ihaken@netflix.com>
 Ian Kent <iankent85@gmail.com>
 Ian Lance Taylor <iant@golang.org>
 Ian Leue <ian@appboy.com>
+Ian Tay <iantay@google.com>
 Ian Zapolsky <ianzapolsky@gmail.com>
 Ibrahim AshShohail <ibra.sho@gmail.com>
 Icarus Sparry <golang@icarus.freeuk.com>
@@ -997,9 +1062,11 @@ Iccha Sethi <icchasethi@gmail.com>
 Idora Shinatose <idora.shinatose@gmail.com>
 Ignacio Hagopian <jsign.uy@gmail.com>
 Igor Bernstein <igorbernstein@google.com>
+Igor Bolotnikov <igor.v.bolotnikov@gmail.com>
 Igor Dolzhikov <bluesriverz@gmail.com>
 Igor Vashyst <ivashyst@gmail.com>
 Igor Zhilianin <igor.zhilianin@gmail.com>
+Ikko Ashimine <eltociear@gmail.com>
 Illya Yalovyy <yalovoy@gmail.com>
 Ilya Sinelnikov <sidhmangh@gmail.com>
 Ilya Tocar <ilya.tocar@intel.com>
@@ -1037,6 +1104,7 @@ Jacob Blain Christen <dweomer5@gmail.com>
 Jacob H. Haven <jacob@cloudflare.com>
 Jacob Hoffman-Andrews <github@hoffman-andrews.com>
 Jacob Walker <jacobwalker0814@gmail.com>
+Jaden Teng <long.asyn@gmail.com>
 Jae Kwon <jae@tendermint.com>
 Jake B <doogie1012@gmail.com>
 Jakob Borg <jakob@nym.se>
@@ -1044,6 +1112,7 @@ Jakob Weisblat <jakobw@mit.edu>
 Jakub Čajka <jcajka@redhat.com>
 Jakub Kaczmarzyk <jakubk@mit.edu>
 Jakub Ryszard Czarnowicz <j.czarnowicz@gmail.com>
+Jakub Warczarek <jakub.warczarek@gmail.com>
 Jamal Carvalho <jamal.a.carvalho@gmail.com>
 James Aguilar <jaguilar@google.com>
 James Bardin <j.bardin@gmail.com>
@@ -1056,9 +1125,11 @@ James Eady <jmeady@google.com>
 James Fysh <james.fysh@gmail.com>
 James Gray <james@james4k.com>
 James Hartig <fastest963@gmail.com>
+James Kasten <jdkasten@google.com>
 James Lawrence <jljatone@gmail.com>
 James Meneghello <rawrz0r@gmail.com>
 James Myers <jfmyers9@gmail.com>
+James Naftel <james.naftel@gmail.com>
 James Neve <jamesoneve@gmail.com>
 James Nugent <james@jen20.com>
 James P. Cooper <jamespcooper@gmail.com>
@@ -1108,6 +1179,7 @@ Javier Kohen <jkohen@google.com>
 Javier Revillas <jrevillas@massivedynamic.io>
 Javier Segura <javism@gmail.com>
 Jay Conrod <jayconrod@google.com>
+Jay Lee <BusyJayLee@gmail.com>
 Jay Taylor <outtatime@gmail.com>
 Jay Weisskopf <jay@jayschwa.net>
 Jean de Klerk <deklerk@google.com>
@@ -1140,14 +1212,17 @@ Jeremy Jay <jeremy@pbnjay.com>
 Jeremy Schlatter <jeremy.schlatter@gmail.com>
 Jeroen Bobbeldijk <jerbob92@gmail.com>
 Jeroen Simonetti <jeroen@simonetti.nl>
+Jérôme Doucet <jerdct@gmail.com>
 Jerrin Shaji George <jerrinsg@gmail.com>
 Jess Frazelle <me@jessfraz.com>
 Jesse Szwedko <jesse.szwedko@gmail.com>
 Jesús Espino <jespinog@gmail.com>
 Jia Zhan <jzhan@uber.com>
 Jiacai Liu <jiacai2050@gmail.com>
+Jiahao Lu <lujjjh@gmail.com>
 Jianing Yu <jnyu@google.com>
 Jianqiao Li <jianqiaoli@google.com>
+Jiayu Yi <yijiayu@gmail.com>
 Jie Ma <jienius@outlook.com>
 Jihyun Yu <yjh0502@gmail.com>
 Jim Cote <jfcote87@gmail.com>
@@ -1183,6 +1258,7 @@ Joey Geiger <jgeiger@users.noreply.github.com>
 Johan Brandhorst <johan.brandhorst@gmail.com>
 Johan Euphrosine <proppy@google.com>
 Johan Jansson <johan.jansson@iki.fi>
+Johan Knutzen <johan@senri.se>
 Johan Sageryd <j@1616.se>
 John Asmuth <jasmuth@gmail.com>
 John Beisley <huin@google.com>
@@ -1210,6 +1286,7 @@ Johnny Luo <johnnyluo1980@gmail.com>
 Jon Chen <jchen@justin.tv>
 Jon Johnson <jonjohnson@google.com>
 Jonas Bernoulli <jonas@bernoul.li>
+Jonathan Albrecht <jonathan.albrecht@ibm.com>
 Jonathan Allie <jonallie@google.com>
 Jonathan Amsterdam <jba@google.com>
 Jonathan Boulle <jonathanboulle@gmail.com>
@@ -1223,6 +1300,7 @@ Jonathan Pentecost <pentecostjonathan@gmail.com>
 Jonathan Pittman <jmpittman@google.com> <jonathan.mark.pittman@gmail.com>
 Jonathan Rudenberg <jonathan@titanous.com>
 Jonathan Stacks <jonstacks13@gmail.com>
+Jonathan Swinney <jswinney@amazon.com>
 Jonathan Wills <runningwild@gmail.com>
 Jonathon Lacher <jonathon.lacher@gmail.com>
 Jongmin Kim <atomaths@gmail.com>
@@ -1233,6 +1311,7 @@ Jordan Krage <jmank88@gmail.com>
 Jordan Lewis <jordanthelewis@gmail.com>
 Jordan Liggitt <liggitt@google.com>
 Jordan Rhee <jordanrh@microsoft.com>
+Jordan Rupprecht <rupprecht@google.com>
 Jordi Martin <jordimartin@gmail.com>
 Jorge Araya <jorgejavieran@yahoo.com.mx>
 Jorge L. Fatta <jorge.fatta@auth0.com>
@@ -1276,6 +1355,7 @@ Julien Salleyron <julien.salleyron@gmail.com>
 Julien Schmidt <google@julienschmidt.com>
 Julio Montes <julio.montes@intel.com>
 Jun Zhang <jim.zoumo@gmail.com>
+Junchen Li <junchen.li@arm.com>
 Junda Liu <junda@celer.network>
 Jungho Ahn <jhahn@google.com>
 Junya Hayashi <ledmonster@gmail.com>
@@ -1287,6 +1367,7 @@ Justin Nuß <nuss.justin@gmail.com>
 Justyn Temme <justyntemme@gmail.com>
 Kai Backman <kaib@golang.org>
 Kai Dong <dokia2357@gmail.com>
+Kai Lüke <kai@kinvolk.io>
 Kai Trukenmüller <ktye78@gmail.com>
 Kale Blankenship <kale@lemnisys.com>
 Kaleb Elwert <kelwert@atlassian.com>
@@ -1314,6 +1395,7 @@ Kazuhiro Sera <seratch@gmail.com>
 KB Sriram <kbsriram@google.com>
 Keegan Carruthers-Smith <keegan.csmith@gmail.com>
 Kei Son <hey.calmdown@gmail.com>
+Keiichi Hirobe <chalenge.akane@gmail.com>
 Keiji Yoshida <keijiyoshida.mail@gmail.com>
 Keisuke Kishimoto <keisuke.kishimoto@gmail.com>
 Keith Ball <inflatablewoman@gmail.com>
@@ -1322,6 +1404,7 @@ Keith Rarick <kr@xph.us>
 Kelly Heller <pestophagous@gmail.com>
 Kelsey Hightower <kelsey.hightower@gmail.com>
 Kelvin Foo Chuan Lyi <vmirage@gmail.com>
+Kemal Elmizan <kemalelmizan@gmail.com>
 Ken Friedenbach <kenliz@cruzio.com>
 Ken Rockot <ken@oz.gs> <ken.rockot@gmail.com>
 Ken Sedgwick <ken@bonsai.com>
@@ -1331,6 +1414,7 @@ Kenji Kaneda <kenji.kaneda@gmail.com>
 Kenji Yano <kenji.yano@gmail.com>
 Kenneth Shaw <kenshaw@gmail.com>
 Kenny Grant <kennygrant@gmail.com>
+Kensei Nakada <handbomusic@gmail.com>
 Kenta Mori <zoncoen@gmail.com>
 Kerollos Magdy <kerolloz@yahoo.com>
 Ketan Parmar <ketanbparmar@gmail.com>
@@ -1342,10 +1426,12 @@ Kevin Gillette <extemporalgenome@gmail.com>
 Kevin Kirsche <kev.kirsche@gmail.com>
 Kevin Klues <klueska@gmail.com> <klueska@google.com>
 Kevin Malachowski <chowski@google.com>
+Kevin Parsons <kevpar@microsoft.com>
 Kevin Ruffin <kruffin@gmail.com>
 Kevin Vu <kevin.m.vu@gmail.com>
 Kevin Zita <bleedgreenandgold@gmail.com>
 Keyan Pishdadian <kpishdadian@gmail.com>
+Keyuan Li <keyuanli123@gmail.com>
 Kezhu Wang <kezhuw@gmail.com>
 Khosrow Moossavi <khos2ow@gmail.com>
 Kieran Colford <kieran@kcolford.com>
@@ -1358,6 +1444,7 @@ Kirill Smelkov <kirr@nexedi.com>
 Kirill Tatchihin <kirabsuir@gmail.com>
 Kirk Han <kirk91.han@gmail.com>
 Kirklin McDonald <kirklin.mcdonald@gmail.com>
+KJ Tsanaktsidis <ktsanaktsidis@zendesk.com>
 Klaus Post <klauspost@gmail.com>
 Kodie Goodwin <kodiegoodwin@gmail.com>
 Koichi Shiraishi <zchee.io@gmail.com>
@@ -1371,6 +1458,7 @@ Kris Kwiatkowski <kris@cloudflare.com>
 Kris Nova <kris@nivenly.com>
 Kris Rousey <krousey@google.com>
 Kristopher Watts <traetox@gmail.com>
+Krzysztof Dąbrowski <krzysdabro@live.com>
 Kshitij Saraogi <kshitijsaraogi@gmail.com>
 Kun Li <likunarmstrong@gmail.com>
 Kunpei Sakai <namusyaka@gmail.com>
@@ -1412,8 +1500,10 @@ Leonardo Comelli <leonardo.comelli@gmail.com>
 Leonel Quinteros <leonel.quinteros@gmail.com>
 Lev Shamardin <shamardin@gmail.com>
 Lewin Bormann <lewin.bormann@gmail.com>
+Lewis Waddicor <nemesismk2@gmail.com>
 Liam Haworth <liam@haworth.id.au>
 Lily Chung <lilithkchung@gmail.com>
+Lingchao Xin <douglarek@gmail.com>
 Lion Yang <lion@aosc.xyz>
 Liz Rice <liz@lizrice.com>
 Lloyd Dewolf <foolswisdom@gmail.com>
@@ -1427,6 +1517,7 @@ Luan Santos <cfcluan@gmail.com>
 Lubomir I. Ivanov <neolit123@gmail.com>
 Luca Bruno <luca.bruno@coreos.com>
 Luca Greco <luca.greco@alcacoop.it>
+Luca Spiller <luca@stackednotion.com>
 Lucas Bremgartner <lucas.bremgartner@gmail.com>
 Lucas Clemente <lclemente@google.com>
 Lucien Stuker <lucien.stuker@gmail.com>
@@ -1450,6 +1541,8 @@ Maarten Bezemer <maarten.bezemer@gmail.com>
 Maciej Dębski <maciejd@google.com>
 Madhu Rajanna <madhupr007@gmail.com>
 Magnus Hiie <magnus.hiie@gmail.com>
+Mahdi Hosseini Moghaddam <seyed.mahdi.hosseini.moghaddam@ibm.com>
+Maia Lee <maia.lee@leftfieldlabs.com>
 Maicon Costa <maiconscosta@gmail.com>
 Mak Kolybabi <mak@kolybabi.com>
 Maksym Trykur <maksym.trykur@gmail.com>
@@ -1470,6 +1563,7 @@ Marcel Edmund Franke <marcel.edmund.franke@gmail.com>
 Marcel van Lohuizen <mpvl@golang.org>
 Marcelo Cantos <marcelo.cantos@gmail.com>
 Marcelo E. Magallon <marcelo.magallon@gmail.com>
+Marco Gazerro <gazerro@open2b.com>
 Marco Hennings <marco.hennings@freiheit.com>
 Marcus Weiner <marcus.weiner@gmail.com>
 Marcus Willock <crazcalm@gmail.com>
@@ -1481,6 +1575,7 @@ Marius A. Eriksen <marius@grailbio.com>
 Marius Nuennerich <mnu@google.com>
 Mark Adams <mark@markadams.me>
 Mark Bucciarelli <mkbucc@gmail.com>
+Mark Dain <mark@markdain.net>
 Mark Glines <mark@glines.org>
 Mark Harrison <marhar@google.com>
 Mark Percival <m@mdp.im>
@@ -1533,6 +1628,7 @@ Máté Gulyás <mgulyas86@gmail.com>
 Matej Baćo <matejbaco@gmail.com>
 Mateus Amin <mateus.amin@gmail.com>
 Mateusz Czapliński <czapkofan@gmail.com>
+Matheus Alcantara <matheusssilv97@gmail.com>
 Mathias Beke <git@denbeke.be>
 Mathias Hall-Andersen <mathias@hall-andersen.dk>
 Mathias Leppich <mleppich@muhqu.de>
@@ -1566,6 +1662,7 @@ Matthew Waters <mwwaters@gmail.com>
 Matthieu Hauglustaine <matt.hauglustaine@gmail.com>
 Matthieu Olivier <olivier.matthieu@gmail.com>
 Matthijs Kooijman <matthijs@stdin.nl>
+Max Drosdo.www <g1ran1q@gmail.com>
 Max Riveiro <kavu13@gmail.com>
 Max Schmitt <max@schmitt.mx>
 Max Semenik <maxsem.wiki@gmail.com>
@@ -1603,6 +1700,7 @@ Michael Hudson-Doyle <michael.hudson@linaro.org>
 Michael Kasch <michael.kasch@gmail.com>
 Michael Käufl <golang@c.michael-kaeufl.de>
 Michael Kelly <mjk@google.com>
+Michaël Lévesque-Dion <mlevesquedion@google.com>
 Michael Lewis <mikelikespie@gmail.com>
 Michael MacInnis <Michael.P.MacInnis@gmail.com>
 Michael Marineau <michael.marineau@coreos.com>
@@ -1624,6 +1722,7 @@ Michael Teichgräber <mteichgraeber@gmx.de> <mt4swm@googlemail.com>
 Michael Traver <mtraver@google.com>
 Michael Vetter <g.bluehut@gmail.com>
 Michael Vogt <mvo@ubuntu.com>
+Michail Kargakis <mkargaki@redhat.com>
 Michal Bohuslávek <mbohuslavek@gmail.com>
 Michal Cierniak <cierniak@google.com>
 Michał Derkacz <ziutek@lnet.pl>
@@ -1633,6 +1732,7 @@ Michal Pristas <michal.pristas@gmail.com>
 Michal Rostecki <mrostecki@suse.de>
 Michalis Kargakis <michaliskargakis@gmail.com>
 Michel Lespinasse <walken@google.com>
+Michele Di Pede <michele.di.pede@gmail.com>
 Mickael Kerjean <mickael.kerjean@gmail.com>
 Mickey Reiss <mickeyreiss@gmail.com>
 Miek Gieben <miek@miek.nl> <remigius.gieben@gmail.com>
@@ -1670,6 +1770,7 @@ Miquel Sabaté Solà <mikisabate@gmail.com>
 Mirko Hansen <baaazen@gmail.com>
 Miroslav Genov <mgenov@gmail.com>
 Misty De Meo <mistydemeo@gmail.com>
+Mohamed Attahri <mohamed@attahri.com>
 Mohit Agarwal <mohit@sdf.org>
 Mohit kumar Bajoria <mohitbajo36@gmail.com>
 Mohit Verma <vmohit.93@gmail.com>
@@ -1683,6 +1784,7 @@ Môshe van der Sterre <moshevds@gmail.com>
 Mostyn Bramley-Moore <mostyn@antipode.se>
 Mrunal Patel <mrunalp@gmail.com>
 Muhammad Falak R Wani <falakreyaz@gmail.com>
+Muhammad Hamza Farrukh <hamzafarrukh141@gmail.com>
 Muhammed Uluyol <uluyol0@gmail.com>
 Muir Manders <muir@mnd.rs>
 Mukesh Sharma <sharma.mukesh439@gmail.com>
@@ -1692,6 +1794,7 @@ Naman Aggarwal <aggarwal.nam@gmail.com>
 Nan Deng <monnand@gmail.com>
 Nao Yonashiro <owan.orisano@gmail.com>
 Naoki Kanatani <k12naoki@gmail.com>
+Natanael Copa <ncopa@mirantis.com>
 Nate Wilkinson <nathanwilk7@gmail.com>
 Nathan Cantelmo <n.cantelmo@gmail.com>
 Nathan Caza <mastercactapus@gmail.com>
@@ -1708,6 +1811,7 @@ Nathaniel Cook <nvcook42@gmail.com>
 Naveen Kumar Sangi <naveenkumarsangi@protonmail.com>
 Neeilan Selvalingam <neeilan96@gmail.com>
 Neelesh Chandola <neelesh.c98@gmail.com>
+Nehal J Wani <nehaljw.kkd1@gmail.com>
 Neil Lyons <nwjlyons@googlemail.com>
 Neuman Vong <neuman.vong@gmail.com>
 Neven Sajko <nsajko@gmail.com>
@@ -1760,6 +1864,7 @@ Noel Georgi <git@frezbo.com>
 Norberto Lopes <nlopes.ml@gmail.com>
 Norman B. Lancaster <qbradq@gmail.com>
 Nuno Cruces <ncruces@users.noreply.github.com>
+Obei Sideg <obei.sideg@gmail.com>
 Obeyda Djeffal <djefobey@gmail.com>
 Odin Ugedal <odin@ugedal.com>
 Oleg Bulatov <dmage@yandex-team.ru>
@@ -1769,12 +1874,17 @@ Oling Cat <olingcat@gmail.com>
 Oliver Hookins <ohookins@gmail.com>
 Oliver Powell <oliverpowell84@gmail.com>
 Oliver Stenbom <ostenbom@pivotal.io>
+Oliver Tan <otan@cockroachlabs.com>
 Oliver Tonnhofer <olt@bogosoft.com>
 Olivier Antoine <olivier.antoine@gmail.com>
 Olivier Duperray <duperray.olivier@gmail.com>
 Olivier Poitrey <rs@dailymotion.com>
 Olivier Saingre <osaingre@gmail.com>
+Olivier Wulveryck <olivier.wulveryck@gmail.com>
 Omar Jarjur <ojarjur@google.com>
+Onkar Jadhav <omjadhav2610@gmail.com>
+Ori Bernstein <ori@eigenstate.org>
+Ori Rawlings <orirawlings@gmail.com>
 Oryan Moshe <iamoryanmoshe@gmail.com>
 Osamu TONOMORI <osamingo@gmail.com>
 Özgür Kesim <oec-go@kesim.org>
@@ -1798,7 +1908,9 @@ Pat Moroney <pat@pat.email>
 Patrick Barker <barkerp@vmware.com>
 Patrick Crosby <patrick@stathat.com>
 Patrick Gavlin <pgavlin@gmail.com>
+Patrick Gundlach <gundlach@speedata.de>
 Patrick Higgins <patrick.allen.higgins@gmail.com>
+Patrick Jones <ithuriel@google.com>
 Patrick Lee <pattyshack101@gmail.com>
 Patrick Mézard <patrick@mezard.eu>
 Patrick Mylund Nielsen <patrick@patrickmn.com>
@@ -1811,6 +1923,9 @@ Paul Borman <borman@google.com>
 Paul Boyd <boyd.paul2@gmail.com>
 Paul Chang <paulchang@google.com>
 Paul D. Weber <x0bdev@gmail.com>
+Paul Davis <43160081+Pawls@users.noreply.github.com>
+Paul E. Murphy <murp@ibm.com>
+Paul Forgey <paulf@tessier-ashpool.net>
 Paul Hammond <paul@paulhammond.org>
 Paul Hankin <paulhankin@google.com>
 Paul Jolly <paul@myitcv.org.uk>
@@ -1836,7 +1951,9 @@ Pavel Zinovkin <pavel.zinovkin@gmail.com>
 Pavlo Sumkin <ymkins@gmail.com>
 Pawel Knap <pawelknap88@gmail.com>
 Pawel Szczur <filemon@google.com>
+Paweł Szulik <pawel.szulik@intel.com>
 Pei Xian Chee <luciolas1991@gmail.com>
+Pei-Ming Wu <p408865@gmail.com>
 Percy Wegmann <ox.to.a.cart@gmail.com>
 Perry Abbott <perry.j.abbott@gmail.com>
 Petar Dambovaliev <petar.atanasov.1987@gmail.com>
@@ -1876,6 +1993,7 @@ Philip Hofer <phofer@umich.edu>
 Philip K. Warren <pkwarren@gmail.com>
 Philip Nelson <me@pnelson.ca>
 Philipp Stephani <phst@google.com>
+Phillip Campbell <15082+phillc@users.noreply.github.com>
 Pierre Carru <pierre.carru@eshard.com>
 Pierre Durand <pierredurand@gmail.com>
 Pierre Prinetti <pierreprinetti@gmail.com>
@@ -1885,6 +2003,7 @@ Pieter Droogendijk <pieter@binky.org.uk>
 Pietro Gagliardi <pietro10@mac.com>
 Piyush Mishra <piyush@codeitout.com>
 Plekhanov Maxim <kishtatix@gmail.com>
+Poh Zi How <poh.zihow@gmail.com>
 Polina Osadcha <polliosa@google.com>
 Pontus Leitzler <leitzler@gmail.com>
 Povilas Versockas <p.versockas@gmail.com>
@@ -1904,14 +2023,17 @@ Quentin Perez <qperez@ocs.online.net>
 Quentin Renard <contact@asticode.com>
 Quentin Smith <quentin@golang.org>
 Quey-Liang Kao <s101062801@m101.nthu.edu.tw>
+Quim Muntal <quimmuntal@gmail.com>
 Quinn Slack <sqs@sourcegraph.com>
 Quinten Yearsley <qyearsley@chromium.org>
 Quoc-Viet Nguyen <afelion@gmail.com>
+Radek Simko <radek.simko@gmail.com>
 Radek Sohlich <sohlich@gmail.com>
 Radu Berinde <radu@cockroachlabs.com>
 Rafal Jeczalik <rjeczalik@gmail.com>
 Raghavendra Nagaraj <jamdagni86@gmail.com>
 Rahul Chaudhry <rahulchaudhry@chromium.org>
+Rahul Wadhwani <rahulwadhwani21@gmail.com>
 Raif S. Naffah <go@naffah-raif.name>
 Rajat Goel <rajat.goel2010@gmail.com>
 Rajath Agasthya <rajathagasthya@gmail.com>
@@ -1935,6 +2057,7 @@ Ren Ogaki <re.yuz77777@gmail.com>
 Rens Rikkerink <Ikkerens@users.noreply.github.com>
 Rhys Hiltner <rhys@justin.tv>
 Ricardo Padilha <ricardospadilha@gmail.com>
+Ricardo Pchevuzinske Katz <ricardo.katz@serpro.gov.br>
 Ricardo Seriani <ricardo.seriani@gmail.com>
 Richard Barnes <rlb@ipv.sx>
 Richard Crowley <r@rcrowley.org>
@@ -1991,6 +2114,7 @@ Roman Kollár <roman.kollar.0@gmail.com>
 Roman Shchekin <mrqtros@gmail.com>
 Ron Hashimoto <mail@h2so5.net>
 Ron Minnich <rminnich@gmail.com>
+Ronnie Ebrin <ebrin.ronnie@protonmail.com>
 Ross Chater <rdchater@gmail.com>
 Ross Kinsey <rossikinsey@gmail.com>
 Ross Light <light@google.com> <rlight2@gmail.com>
@@ -2010,6 +2134,7 @@ Ryan Brown <ribrdb@google.com>
 Ryan Canty <jrcanty@gmail.com>
 Ryan Dahl <ry@tinyclouds.org>
 Ryan Hitchman <hitchmanr@gmail.com>
+Ryan Kohler <ryankohler@google.com>
 Ryan Lower <rpjlower@gmail.com>
 Ryan Roden-Corrent <ryan@rcorre.net>
 Ryan Seys <ryan@ryanseys.com>
@@ -2023,7 +2148,9 @@ S.Çağlar Onur <caglar@10ur.org>
 Sabin Mihai Rapan <sabin.rapan@gmail.com>
 Sad Pencil <qh06@qq.com>
 Sai Cheemalapati <saicheems@google.com>
+Sai Kiran Dasika <kirandasika30@gmail.com>
 Sakeven Jiang <jc5930@sina.cn>
+Salaheddin M. Mahmud <salah.mahmud@gmail.com>
 Salmān Aljammāz <s@0x65.net>
 Sam Arnold <sarnold64@bloomberg.net>
 Sam Boyer <tech@samboyer.org>
@@ -2033,6 +2160,7 @@ Sam Ding <samding@ca.ibm.com>
 Sam Hug <samuel.b.hug@gmail.com>
 Sam Thorogood <thorogood@google.com> <sam.thorogood@gmail.com>
 Sam Whited <sam@samwhited.com>
+Sam Xie <xsambundy@gmail.com>
 Sameer Ajmani <sameer@golang.org> <ajmani@gmail.com>
 Sami Commerot <samic@google.com>
 Sami Pönkänen <sami.ponkanen@gmail.com>
@@ -2042,6 +2170,7 @@ Samuele Pedroni <pedronis@lucediurna.net>
 Sander van Harmelen <sander@vanharmelen.nl>
 Sanjay Menakuru <balasanjay@gmail.com>
 Santhosh Kumar Tekuri <santhosh.tekuri@gmail.com>
+Santiago De la Cruz <51337247+xhit@users.noreply.github.com>
 Sarah Adams <shadams@google.com>
 Sardorbek Pulatov <sardorbek.pulatov@outlook.com>
 Sascha Brawer <sascha@brawer.ch>
@@ -2062,6 +2191,7 @@ Sean Chittenden <seanc@joyent.com>
 Sean Christopherson <sean.j.christopherson@intel.com>
 Sean Dolphin <Sean.Dolphin@kpcompass.com>
 Sean Harger <sharger@google.com>
+Sean Hildebrand <seanwhildebrand@gmail.com>
 Sean Liao <seankhliao@gmail.com>
 Sean Rees <sean@erifax.org>
 Sebastiaan van Stijn <github@gone.nl>
@@ -2094,10 +2224,12 @@ Serhii Aheienko <serhii.aheienko@gmail.com>
 Seth Hoenig <seth.a.hoenig@gmail.com>
 Seth Vargo <sethvargo@gmail.com>
 Shahar Kohanim <skohanim@gmail.com>
+Shailesh Suryawanshi <ss.shailesh28@gmail.com>
 Shamil Garatuev <garatuev@gmail.com>
 Shane Hansen <shanemhansen@gmail.com>
 Shang Jian Ding <sding3@ncsu.edu>
 Shaozhen Ding <dsz0111@gmail.com>
+Shaquille Que <shaquille@golang.org>
 Shaquille Wyan Que <shaqqywyan@gmail.com>
 Shaun Dunning <shaun.dunning@uservoice.com>
 Shawn Elliott <selliott@microsoft.com>
@@ -2108,8 +2240,11 @@ Shenghou Ma <minux@golang.org> <minux.ma@gmail.com>
 Shengjing Zhu <zsj950618@gmail.com>
 Shengyu Zhang <shengyu.zhang@chaitin.com>
 Shi Han Ng <shihanng@gmail.com>
+ShihCheng Tu <mrtoastcheng@gmail.com>
 Shijie Hao <haormj@gmail.com>
+Shin Fan <shinfan@google.com>
 Shinji Tanaka <shinji.tanaka@gmail.com>
+Shinnosuke Sawada <6warashi9@gmail.com>
 Shintaro Kaneko <kaneshin0120@gmail.com>
 Shivakumar GN <shivakumar.gn@gmail.com>
 Shivani Singhal <shivani.singhal2804@gmail.com>
@@ -2121,17 +2256,21 @@ Silvan Jegen <s.jegen@gmail.com>
 Simarpreet Singh <simar@linux.com>
 Simon Drake <simondrake1990@gmail.com>
 Simon Ferquel <simon.ferquel@docker.com>
+Simon Frei <freisim93@gmail.com>
 Simon Jefford <simon.jefford@gmail.com>
 Simon Rawet <simon@rawet.se>
 Simon Rozman <simon@rozman.si>
+Simon Ser <contact@emersion.fr>
 Simon Thulbourn <simon+github@thulbourn.com>
 Simon Whitehead <chemnova@gmail.com>
 Sina Siadat <siadat@gmail.com>
 Sjoerd Siebinga <sjoerd.siebinga@gmail.com>
 Sokolov Yura <funny.falcon@gmail.com>
 Song Gao <song@gao.io>
+Songjiayang <songjiayang1@gmail.com>
 Soojin Nam <jsunam@gmail.com>
 Søren L. Hansen <soren@linux2go.dk>
+Sparrow Li <liyuancylx@gmail.com>
 Spencer Kocot <spencerkocot@gmail.com>
 Spencer Nelson <s@spenczar.com>
 Spencer Tung <spencertung@google.com>
@@ -2140,12 +2279,14 @@ Srdjan Petrovic <spetrovic@google.com>
 Sridhar Venkatakrishnan <sridhar@laddoo.net>
 Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>
 StalkR <stalkr@stalkr.net>
+Stan Hu <stanhu@gmail.com>
 Stan Schwertly <stan@schwertly.com>
 Stanislav Afanasev <php.progger@gmail.com>
 Steeve Morin <steeve.morin@gmail.com>
 Stefan Baebler <sbaebler@outbrain.com>
 Stefan Nilsson <snilsson@nada.kth.se> <trolleriprofessorn@gmail.com>
 Stepan Shabalin <neverliberty@gmail.com>
+Stephan Klatt <stephan.klatt@gmail.com>
 Stephan Renatus <srenatus@chef.io>
 Stephan Zuercher <zuercher@gmail.com>
 Stéphane Travostino <stephane.travostino@gmail.com>
@@ -2163,13 +2304,16 @@ Steve Mynott <steve.mynott@gmail.com>
 Steve Newman <snewman@google.com>
 Steve Phillips <elimisteve@gmail.com>
 Steve Streeting <steve@stevestreeting.com>
+Steve Traut <straut@google.com>
 Steven Buss <sbuss@google.com>
 Steven Elliot Harris <seharris@gmail.com>
 Steven Erenst <stevenerenst@gmail.com>
 Steven Hartland <steven.hartland@multiplay.co.uk>
 Steven Littiebrant <imgroxx@gmail.com>
+Steven Maude <git@stevenmaude.co.uk>
 Steven Wilkin <stevenwilkin@gmail.com>
 Stuart Jansen <sjansen@buscaluz.org>
+Subham Sarkar <sarkar.subhams2@gmail.com>
 Sue Spence <virtuallysue@gmail.com>
 Sugu Sougoumarane <ssougou@gmail.com>
 Suharsh Sivakumar <suharshs@google.com>
@@ -2193,6 +2337,7 @@ Taesu Pyo <pyotaesu@gmail.com>
 Tai Le <letientai299@gmail.com>
 Taj Khattra <taj.khattra@gmail.com>
 Takashi Matsuo <tmatsuo@google.com>
+Takashi Mima <tks.m1205@gmail.com>
 Takayoshi Nishida <takayoshi.nishida@gmail.com>
 Takeshi YAMANASHI <9.nashi@gmail.com>
 Takuto Ikuta <tikuta@google.com>
@@ -2221,6 +2366,7 @@ Thanatat Tamtan <acoshift@gmail.com>
 The Hatsune Daishi <nao20010128@gmail.com>
 Thiago Avelino <t@avelino.xxx>
 Thiago Fransosi Farina <thiago.farina@gmail.com> <tfarina@chromium.org>
+Thom Wiggers <thom@thomwiggers.nl>
 Thomas Alan Copeland <talan.copeland@gmail.com>
 Thomas Bonfort <thomas.bonfort@gmail.com>
 Thomas Bouldin <inlined@google.com>
@@ -2245,6 +2391,7 @@ Tim Ebringer <tim.ebringer@gmail.com>
 Tim Heckman <t@heckman.io>
 Tim Henderson <tim.tadh@gmail.com>
 Tim Hockin <thockin@google.com>
+Tim King <taking@google.com>
 Tim Möhlmann <muhlemmer@gmail.com>
 Tim Swast <swast@google.com>
 Tim Wright <tenortim@gmail.com>
@@ -2252,8 +2399,10 @@ Tim Xu <xiaoxubeii@gmail.com>
 Timmy Douglas <timmyd983@gmail.com>
 Timo Savola <timo.savola@gmail.com>
 Timo Truyts <alkaloid.btx@gmail.com>
+Timothy Gu <timothygu99@gmail.com>
 Timothy Studd <tim@timstudd.com>
 Tipp Moseley <tipp@google.com>
+Tiwei Bie <tiwei.btw@antgroup.com>
 Tobias Assarsson <tobias.assarsson@gmail.com>
 Tobias Columbus <tobias.columbus@gmail.com> <tobias.columbus@googlemail.com>
 Tobias Klauser <tklauser@distanz.ch>
@@ -2268,11 +2417,13 @@ Tom Lanyon <tomlanyon@google.com>
 Tom Levy <tomlevy93@gmail.com>
 Tom Limoncelli <tal@whatexit.org>
 Tom Linford <tomlinford@gmail.com>
+Tom Panton <tom@tomandtally.co.uk>
 Tom Parkin <tom.parkin@gmail.com>
 Tom Payne <twpayne@gmail.com>
 Tom Szymanski <tgs@google.com>
 Tom Thorogood <me+google@tomthorogood.co.uk>
 Tom Wilkie <tom@weave.works>
+Tom Zierbock <tomzierbock@gmail.com>
 Tomas Dabasinskas <tomas@dabasinskas.net>
 Tommy Schaefer <tommy.schaefer@teecom.com>
 Tomohiro Kusumoto <zabio1192@gmail.com>
@@ -2298,6 +2449,7 @@ Tristan Colgate <tcolgate@gmail.com>
 Tristan Ooohry <ooohry@gmail.com>
 Tristan Rice <rice@fn.lc>
 Troels Thomsen <troels@thomsen.io>
+Trong Bui <trong.buiquoc@gmail.com>
 Trung Nguyen <trung.n.k@gmail.com>
 Tsuji Daishiro <dram.dt.shonan@gmail.com>
 Tudor Golubenco <tudor.g@gmail.com>
@@ -2308,6 +2460,7 @@ Tyler Bunnell <tylerbunnell@gmail.com>
 Tyler Treat <ttreat31@gmail.com>
 Tyson Andre <tysonandre775@gmail.com>
 Tzach Shabtay <tzachshabtay@gmail.com>
+Tzu-Chiao Yeh <su3g4284zo6y7@gmail.com>
 Tzu-Jung Lee <roylee17@currant.com>
 Udalov Max <re.udalov@gmail.com>
 Ugorji Nwoke <ugorji@gmail.com>
@@ -2316,6 +2469,7 @@ Ulrich Kunitz <uli.kunitz@gmail.com>
 Umang Parmar <umangjparmar@gmail.com>
 Uriel Mangado <uriel@berlinblue.org>
 Urvil Patel <patelurvil38@gmail.com>
+Utkarsh Dixit <53217283+utkarsh-extc@users.noreply.github.com>
 Uttam C Pawar <uttam.c.pawar@intel.com>
 Vadim Grek <vadimprog@gmail.com>
 Vadim Vygonets <unixdj@gmail.com>
@@ -2327,6 +2481,7 @@ Venil Noronha <veniln@vmware.com>
 Veselkov Konstantin <kostozyb@gmail.com>
 Viacheslav Poturaev <vearutop@gmail.com>
 Victor Chudnovsky <vchudnov@google.com>
+Victor Michel <victor@optimyze.cloud>
 Victor Vrantchan <vrancean+github@gmail.com>
 Vignesh Ramachandra <vickyramachandra@gmail.com>
 Vikas Kedia <vikask@google.com>
@@ -2341,6 +2496,7 @@ Visweswara R <r.visweswara@gmail.com>
 Vitaly Zdanevich <zdanevich.vitaly@ya.ru>
 Vitor De Mario <vitordemario@gmail.com>
 Vivek Sekhar <vsekhar@google.com>
+Vivek V <iamvivekv96@gmail.com>
 Vivian Liang <vliang88@gmail.com>
 Vlad Krasnov <vlad@cloudflare.com>
 Vladimir Evgrafov <evgrafov.vladimir@gmail.com>
@@ -2392,6 +2548,7 @@ Wu Yunzhou <yunzhouwu@gmail.com>
 Xi Ruoyao <xry23333@gmail.com>
 Xia Bin <snyh@snyh.org>
 Xiangdong Ji <xiangdong.ji@arm.com>
+Xiaodong Liu <teaofmoli@gmail.com>
 Xing Xing <mikespook@gmail.com>
 Xingqang Bai <bxq2011hust@qq.com>
 Xu Fei <badgangkiller@gmail.com>
@@ -2459,6 +2616,7 @@ Zhou Peng <p@ctriple.cn>
 Ziad Hatahet <hatahet@gmail.com>
 Ziheng Liu <lzhfromustc@gmail.com>
 Zorion Arrizabalaga <zorionk@gmail.com>
+Zyad A. Ali <zyad.ali.me@gmail.com>
 Максадбек Ахмедов <a.maksadbek@gmail.com>
 Максим Федосеев <max.faceless.frei@gmail.com>
 Роман Хавроненко <hagen1778@gmail.com>
diff --git a/doc/go1.16.html b/doc/go1.16.html
index 878bf0d029..d5de0ee5ce 100644
--- a/doc/go1.16.html
+++ b/doc/go1.16.html
@@ -174,10 +174,12 @@ Do not send CLs removing the interior tags from such phrases.
   non-reproducible builds.
 </p>
 
-<p><!-- golang.org/issue/43052 -->
-  The <code>go</code> command now disallows non-ASCII import paths in module
-  mode. Non-ASCII module paths have already been disallowed so this change
-  affects module subdirectory paths that contain non-ASCII characters.
+<p><!-- golang.org/issue/43052, golang.org/issue/43985 -->
+  In module mode, the <code>go</code> command now disallows import paths that
+  include non-ASCII characters or path elements with a leading dot character
+  (<code>.</code>). Module paths with these characters were already disallowed
+  (see <a href="/ref/mod#go-mod-file-ident">Module paths and versions</a>),
+  so this change affects only paths within module subdirectories.
 </p>
 
 <h4 id="embed">Embedding Files</h4>
@@ -378,6 +380,16 @@ func TestFoo(t *testing.T) {
   fixes.
 </p>
 
+<h4 id="vet-asn1-unmarshal">New warning for asn1.Unmarshal</h4>
+
+<p><!-- CL 243397 -->
+  The vet tool now warns about incorrectly passing a non-pointer or nil argument to
+  <a href="/pkg/encoding/asn1/#Unmarshal"><code>asn1.Unmarshal</code></a>.
+  This is like the existing checks for
+  <a href="/pkg/encoding/json/#Unmarshal"><code>encoding/json.Unmarshal</code></a>
+  and <a href="/pkg/encoding/xml/#Unmarshal"><code>encoding/xml.Unmarshal</code></a>.
+</p>
+
 <h2 id="runtime">Runtime</h2>
 
 <p>
diff --git a/doc/go_spec.html b/doc/go_spec.html
index c9e14a3fec..59c9ce3c43 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -1,6 +1,6 @@
 <!--{
 	"Title": "The Go Programming Language Specification",
-	"Subtitle": "Version of Feb 2, 2021",
+	"Subtitle": "Version of Feb 10, 2021",
 	"Path": "/ref/spec"
 }-->
 
@@ -3446,7 +3446,7 @@ In a function call, the function value and arguments are evaluated in
 After they are evaluated, the parameters of the call are passed by value to the function
 and the called function begins execution.
 The return parameters of the function are passed by value
-back to the calling function when the function returns.
+back to the caller when the function returns.
 </p>
 
 <p>
diff --git a/src/archive/tar/strconv.go b/src/archive/tar/strconv.go
index 6d0a403808..f0b61e6dba 100644
--- a/src/archive/tar/strconv.go
+++ b/src/archive/tar/strconv.go
@@ -265,8 +265,27 @@ func parsePAXRecord(s string) (k, v, r string, err error) {
 		return "", "", s, ErrHeader
 	}
 
+	afterSpace := int64(sp + 1)
+	beforeLastNewLine := n - 1
+	// In some cases, "length" was perhaps padded/malformed, and
+	// trying to index past where the space supposedly is goes past
+	// the end of the actual record.
+	// For example:
+	//    "0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319"
+	//                                  ^     ^
+	//                                  |     |
+	//                                  |  afterSpace=35
+	//                                  |
+	//                          beforeLastNewLine=29
+	// yet indexOf(firstSpace) MUST BE before endOfRecord.
+	//
+	// See https://golang.org/issues/40196.
+	if afterSpace >= beforeLastNewLine {
+		return "", "", s, ErrHeader
+	}
+
 	// Extract everything between the space and the final newline.
-	rec, nl, rem := s[sp+1:n-1], s[n-1:n], s[n:]
+	rec, nl, rem := s[afterSpace:beforeLastNewLine], s[beforeLastNewLine:n], s[n:]
 	if nl != "\n" {
 		return "", "", s, ErrHeader
 	}
diff --git a/src/archive/tar/strconv_test.go b/src/archive/tar/strconv_test.go
index dd3505a758..add65e272a 100644
--- a/src/archive/tar/strconv_test.go
+++ b/src/archive/tar/strconv_test.go
@@ -368,6 +368,13 @@ func TestParsePAXRecord(t *testing.T) {
 		{"16 longkeyname=hahaha\n", "16 longkeyname=hahaha\n", "", "", false},
 		{"3 somelongkey=\n", "3 somelongkey=\n", "", "", false},
 		{"50 tooshort=\n", "50 tooshort=\n", "", "", false},
+		{"0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319", "0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319", "mtime", "1432668921.098285006", false},
+		{"06 k=v\n", "06 k=v\n", "", "", false},
+		{"00006 k=v\n", "00006 k=v\n", "", "", false},
+		{"000006 k=v\n", "000006 k=v\n", "", "", false},
+		{"000000 k=v\n", "000000 k=v\n", "", "", false},
+		{"0 k=v\n", "0 k=v\n", "", "", false},
+		{"+0000005 x=\n", "+0000005 x=\n", "", "", false},
 	}
 
 	for _, v := range vectors {
diff --git a/src/cmd/compile/internal/walk/expr.go b/src/cmd/compile/internal/walk/expr.go
index d7a20206c8..7b65db5100 100644
--- a/src/cmd/compile/internal/walk/expr.go
+++ b/src/cmd/compile/internal/walk/expr.go
@@ -480,8 +480,12 @@ func walkAddString(n *ir.AddStringExpr, init *ir.Nodes) ir.Node {
 
 // walkCall walks an OCALLFUNC, OCALLINTER, or OCALLMETH node.
 func walkCall(n *ir.CallExpr, init *ir.Nodes) ir.Node {
-	if n.Op() == ir.OCALLINTER {
+	if n.Op() == ir.OCALLINTER || n.Op() == ir.OCALLMETH {
+		// We expect both interface call reflect.Type.Method and concrete
+		// call reflect.(*rtype).Method.
 		usemethod(n)
+	}
+	if n.Op() == ir.OCALLINTER {
 		reflectdata.MarkUsedIfaceMethod(n)
 	}
 
@@ -899,6 +903,16 @@ func usemethod(n *ir.CallExpr) {
 		}
 	}
 
+	// Don't mark reflect.(*rtype).Method, etc. themselves in the reflect package.
+	// Those functions may be alive via the itab, which should not cause all methods
+	// alive. We only want to mark their callers.
+	if base.Ctxt.Pkgpath == "reflect" {
+		switch ir.CurFunc.Nname.Sym().Name { // TODO: is there a better way than hardcoding the names?
+		case "(*rtype).Method", "(*rtype).MethodByName", "(*interfaceType).Method", "(*interfaceType).MethodByName":
+			return
+		}
+	}
+
 	// Note: Don't rely on res0.Type.String() since its formatting depends on multiple factors
 	//       (including global variables such as numImports - was issue #19028).
 	// Also need to check for reflect package itself (see Issue #38515).
diff --git a/src/cmd/go/alldocs.go b/src/cmd/go/alldocs.go
index da06e831ae..db3f281ef3 100644
--- a/src/cmd/go/alldocs.go
+++ b/src/cmd/go/alldocs.go
@@ -1808,7 +1808,7 @@
 // 		The directory where the go command will write
 // 		temporary source files, packages, and binaries.
 // 	GOVCS
-// 	  Lists version control commands that may be used with matching servers.
+// 		Lists version control commands that may be used with matching servers.
 // 		See 'go help vcs'.
 //
 // Environment variables for use with cgo:
@@ -2410,6 +2410,17 @@
 //
 // For a detailed reference on modules, see https://golang.org/ref/mod.
 //
+// By default, the go command may download modules from https://proxy.golang.org.
+// It may authenticate modules using the checksum database at
+// https://sum.golang.org. Both services are operated by the Go team at Google.
+// The privacy policies for these services are available at
+// https://proxy.golang.org/privacy and https://sum.golang.org/privacy,
+// respectively.
+//
+// The go command's download behavior may be configured using GOPROXY, GOSUMDB,
+// GOPRIVATE, and other environment variables. See 'go help environment'
+// and https://golang.org/ref/mod#private-module-privacy for more information.
+//
 //
 // Module authentication using go.sum
 //
@@ -2868,20 +2879,23 @@
 // legal reasons). Therefore, clients can still access public code served from
 // Bazaar, Fossil, or Subversion repositories by default, because those downloads
 // use the Go module mirror, which takes on the security risk of running the
-// version control commands, using a custom sandbox.
+// version control commands using a custom sandbox.
 //
 // The GOVCS variable can be used to change the allowed version control systems
 // for specific packages (identified by a module or import path).
-// The GOVCS variable applies both when using modules and when using GOPATH.
-// When using modules, the patterns match against the module path.
-// When using GOPATH, the patterns match against the import path
-// corresponding to the root of the version control repository.
+// The GOVCS variable applies when building package in both module-aware mode
+// and GOPATH mode. When using modules, the patterns match against the module path.
+// When using GOPATH, the patterns match against the import path corresponding to
+// the root of the version control repository.
 //
 // The general form of the GOVCS setting is a comma-separated list of
 // pattern:vcslist rules. The pattern is a glob pattern that must match
 // one or more leading elements of the module or import path. The vcslist
 // is a pipe-separated list of allowed version control commands, or "all"
-// to allow use of any known command, or "off" to allow nothing.
+// to allow use of any known command, or "off" to disallow all commands.
+// Note that if a module matches a pattern with vcslist "off", it may still be
+// downloaded if the origin server uses the "mod" scheme, which instructs the
+// go command to download the module using the GOPROXY protocol.
 // The earliest matching pattern in the list applies, even if later patterns
 // might also match.
 //
@@ -2889,7 +2903,7 @@
 //
 // 	GOVCS=github.com:git,evil.com:off,*:git|hg
 //
-// With this setting, code with an module or import path beginning with
+// With this setting, code with a module or import path beginning with
 // github.com/ can only use git; paths on evil.com cannot use any version
 // control command, and all other paths (* matches everything) can use
 // only git or hg.
diff --git a/src/cmd/go/internal/help/helpdoc.go b/src/cmd/go/internal/help/helpdoc.go
index e07ad0e1db..57cee4ff96 100644
--- a/src/cmd/go/internal/help/helpdoc.go
+++ b/src/cmd/go/internal/help/helpdoc.go
@@ -542,7 +542,7 @@ General-purpose environment variables:
 		The directory where the go command will write
 		temporary source files, packages, and binaries.
 	GOVCS
-	  Lists version control commands that may be used with matching servers.
+		Lists version control commands that may be used with matching servers.
 		See 'go help vcs'.
 
 Environment variables for use with cgo:
diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go
index 3a274a3ad1..8b12faf4cd 100644
--- a/src/cmd/go/internal/load/pkg.go
+++ b/src/cmd/go/internal/load/pkg.go
@@ -36,6 +36,8 @@ import (
 	"cmd/go/internal/str"
 	"cmd/go/internal/trace"
 	"cmd/internal/sys"
+
+	"golang.org/x/mod/module"
 )
 
 var IgnoreImports bool // control whether we ignore imports in packages
@@ -2090,6 +2092,9 @@ func validEmbedPattern(pattern string) bool {
 // can't or won't be included in modules and therefore shouldn't be treated
 // as existing for embedding.
 func isBadEmbedName(name string) bool {
+	if err := module.CheckFilePath(name); err != nil {
+		return true
+	}
 	switch name {
 	// Empty string should be impossible but make it bad.
 	case "":
diff --git a/src/cmd/go/internal/modget/get.go b/src/cmd/go/internal/modget/get.go
index 574f3e194d..dccacd3d1e 100644
--- a/src/cmd/go/internal/modget/get.go
+++ b/src/cmd/go/internal/modget/get.go
@@ -176,20 +176,23 @@ packages or when the mirror refuses to serve a public package (typically for
 legal reasons). Therefore, clients can still access public code served from
 Bazaar, Fossil, or Subversion repositories by default, because those downloads
 use the Go module mirror, which takes on the security risk of running the
-version control commands, using a custom sandbox.
+version control commands using a custom sandbox.
 
 The GOVCS variable can be used to change the allowed version control systems
 for specific packages (identified by a module or import path).
-The GOVCS variable applies both when using modules and when using GOPATH.
-When using modules, the patterns match against the module path.
-When using GOPATH, the patterns match against the import path
-corresponding to the root of the version control repository.
+The GOVCS variable applies when building package in both module-aware mode
+and GOPATH mode. When using modules, the patterns match against the module path.
+When using GOPATH, the patterns match against the import path corresponding to
+the root of the version control repository.
 
 The general form of the GOVCS setting is a comma-separated list of
 pattern:vcslist rules. The pattern is a glob pattern that must match
 one or more leading elements of the module or import path. The vcslist
 is a pipe-separated list of allowed version control commands, or "all"
-to allow use of any known command, or "off" to allow nothing.
+to allow use of any known command, or "off" to disallow all commands.
+Note that if a module matches a pattern with vcslist "off", it may still be
+downloaded if the origin server uses the "mod" scheme, which instructs the
+go command to download the module using the GOPROXY protocol.
 The earliest matching pattern in the list applies, even if later patterns
 might also match.
 
@@ -197,7 +200,7 @@ For example, consider:
 
 	GOVCS=github.com:git,evil.com:off,*:git|hg
 
-With this setting, code with an module or import path beginning with
+With this setting, code with a module or import path beginning with
 github.com/ can only use git; paths on evil.com cannot use any version
 control command, and all other paths (* matches everything) can use
 only git or hg.
@@ -380,10 +383,9 @@ func runGet(ctx context.Context, cmd *base.Command, args []string) {
 		pkgs := load.PackagesAndErrors(ctx, pkgPatterns)
 		load.CheckPackageErrors(pkgs)
 		work.InstallPackages(ctx, pkgPatterns, pkgs)
-		// TODO(#40276): After Go 1.16, print a deprecation notice when building
-		// and installing main packages. 'go install pkg' or
-		// 'go install pkg@version' should be used instead.
-		// Give the specific argument to use if possible.
+		// TODO(#40276): After Go 1.16, print a deprecation notice when building and
+		// installing main packages. 'go install pkg' or 'go install pkg@version'
+		// should be used instead. Give the specific argument to use if possible.
 	}
 
 	if !modload.HasModRoot() {
@@ -1453,7 +1455,18 @@ func (r *resolver) checkPackagesAndRetractions(ctx context.Context, pkgPatterns
 			}
 		}
 		for _, pkg := range pkgs {
-			if _, _, err := modload.Lookup("", false, pkg); err != nil {
+			if dir, _, err := modload.Lookup("", false, pkg); err != nil {
+				if dir != "" && errors.Is(err, imports.ErrNoGo) {
+					// Since dir is non-empty, we must have located source files
+					// associated with either the package or its test — ErrNoGo must
+					// indicate that none of those source files happen to apply in this
+					// configuration. If we are actually building the package (no -d
+					// flag), the compiler will report the problem; otherwise, assume that
+					// the user is going to build or test it in some other configuration
+					// and suppress the error.
+					continue
+				}
+
 				base.SetExitStatus(1)
 				if ambiguousErr := (*modload.AmbiguousImportError)(nil); errors.As(err, &ambiguousErr) {
 					for _, m := range ambiguousErr.Modules {
diff --git a/src/cmd/go/internal/modload/help.go b/src/cmd/go/internal/modload/help.go
index 1cb58961be..fd39ddd94e 100644
--- a/src/cmd/go/internal/modload/help.go
+++ b/src/cmd/go/internal/modload/help.go
@@ -6,8 +6,6 @@ package modload
 
 import "cmd/go/internal/base"
 
-// TODO(rsc): The "module code layout" section needs to be written.
-
 var HelpModules = &base.Command{
 	UsageLine: "modules",
 	Short:     "modules, module versions, and more",
@@ -22,6 +20,17 @@ For a series of tutorials on modules, see
 https://golang.org/doc/tutorial/create-module.
 
 For a detailed reference on modules, see https://golang.org/ref/mod.
+
+By default, the go command may download modules from https://proxy.golang.org.
+It may authenticate modules using the checksum database at
+https://sum.golang.org. Both services are operated by the Go team at Google.
+The privacy policies for these services are available at
+https://proxy.golang.org/privacy and https://sum.golang.org/privacy,
+respectively.
+
+The go command's download behavior may be configured using GOPROXY, GOSUMDB,
+GOPRIVATE, and other environment variables. See 'go help environment'
+and https://golang.org/ref/mod#private-module-privacy for more information.
 	`,
 }
 
diff --git a/src/cmd/go/testdata/script/mod_get_pkgtags.txt b/src/cmd/go/testdata/script/mod_get_pkgtags.txt
new file mode 100644
index 0000000000..c0a57f3fab
--- /dev/null
+++ b/src/cmd/go/testdata/script/mod_get_pkgtags.txt
@@ -0,0 +1,116 @@
+# https://golang.org/issue/44106
+# 'go get' should fetch the transitive dependencies of packages regardless of
+# tags, but shouldn't error out if the package is missing tag-guarded
+# dependencies.
+
+# Control case: just adding the top-level module to the go.mod file does not
+# fetch its dependencies.
+
+go mod edit -require example.net/tools@v0.1.0
+! go list -deps example.net/cmd/tool
+stderr '^module example\.net/cmd provides package example\.net/cmd/tool and is replaced but not required; to add it:\n\tgo get example\.net/cmd@v0\.1\.0$'
+go mod edit -droprequire example.net/tools
+
+
+# 'go get -d' makes a best effort to fetch those dependencies, but shouldn't
+# error out if dependencies of tag-guarded files are missing.
+
+go get -d example.net/tools@v0.1.0
+
+! go list example.net/tools
+stderr '^package example.net/tools: build constraints exclude all Go files in .*[/\\]tools$'
+
+go list -tags=tools -e -deps example.net/tools
+stdout '^example.net/cmd/tool$'
+stdout '^example.net/missing$'
+
+go list -deps example.net/cmd/tool
+
+! go list example.net/missing
+stderr '^no required module provides package example.net/missing; to add it:\n\tgo get example.net/missing$'
+
+
+# https://golang.org/issue/29268
+# 'go get' should fetch modules whose roots contain test-only packages, but
+# without the -t flag shouldn't error out if the test has missing dependencies.
+
+go get -d example.net/testonly@v0.1.0
+
+# With the -t flag, the test dependencies must resolve successfully.
+! go get -d -t example.net/testonly@v0.1.0
+stderr '^example.net/testonly tested by\n\texample.net/testonly\.test imports\n\texample.net/missing: cannot find module providing package example.net/missing$'
+
+
+# 'go get -d' should succeed for a module path that does not contain a package,
+# but fail for a non-package subdirectory of a module.
+
+! go get -d example.net/missing/subdir@v0.1.0
+stderr '^go get: module example.net/missing@v0.1.0 found \(replaced by ./missing\), but does not contain package example.net/missing/subdir$'
+
+go get -d example.net/missing@v0.1.0
+
+
+# Getting the subdirectory should continue to fail even if the corresponding
+# module is already present in the build list.
+
+! go get -d example.net/missing/subdir@v0.1.0
+stderr '^go get: module example.net/missing@v0.1.0 found \(replaced by ./missing\), but does not contain package example.net/missing/subdir$'
+
+
+-- go.mod --
+module example.net/m
+
+go 1.15
+
+replace (
+	example.net/tools v0.1.0 => ./tools
+	example.net/cmd v0.1.0 => ./cmd
+	example.net/testonly v0.1.0 => ./testonly
+	example.net/missing v0.1.0 => ./missing
+)
+
+-- tools/go.mod --
+module example.net/tools
+
+go 1.15
+
+// Requirements intentionally omitted.
+
+-- tools/tools.go --
+// +build tools
+
+package tools
+
+import (
+	_ "example.net/cmd/tool"
+	_ "example.net/missing"
+)
+
+-- cmd/go.mod --
+module example.net/cmd
+
+go 1.16
+-- cmd/tool/tool.go --
+package main
+
+func main() {}
+
+-- testonly/go.mod --
+module example.net/testonly
+
+go 1.15
+-- testonly/testonly_test.go --
+package testonly_test
+
+import _ "example.net/missing"
+
+func Test(t *testing.T) {}
+
+-- missing/go.mod --
+module example.net/missing
+
+go 1.15
+-- missing/README.txt --
+There are no Go source files here.
+-- missing/subdir/README.txt --
+There are no Go source files here either.
diff --git a/src/io/fs/fs.go b/src/io/fs/fs.go
index c330f123ad..3d2e2ee2ac 100644
--- a/src/io/fs/fs.go
+++ b/src/io/fs/fs.go
@@ -10,6 +10,7 @@ package fs
 import (
 	"internal/oserror"
 	"time"
+	"unicode/utf8"
 )
 
 // An FS provides access to a hierarchical file system.
@@ -32,15 +33,22 @@ type FS interface {
 
 // ValidPath reports whether the given path name
 // is valid for use in a call to Open.
-// Path names passed to open are unrooted, slash-separated
-// sequences of path elements, like “x/y/z”.
-// Path names must not contain a “.” or “..” or empty element,
+//
+// Path names passed to open are UTF-8-encoded,
+// unrooted, slash-separated sequences of path elements, like “x/y/z”.
+// Path names must not contain an element that is “.” or “..” or the empty string,
 // except for the special case that the root directory is named “.”.
-// Leading and trailing slashes (like “/x” or “x/”) are not allowed.
+// Paths must not start or end with a slash: “/x” and “x/” are invalid.
 //
-// Paths are slash-separated on all systems, even Windows.
-// Backslashes must not appear in path names.
+// Note that paths are slash-separated on all systems, even Windows.
+// Paths containing other characters such as backslash and colon
+// are accepted as valid, but those characters must never be
+// interpreted by an FS implementation as path element separators.
 func ValidPath(name string) bool {
+	if !utf8.ValidString(name) {
+		return false
+	}
+
 	if name == "." {
 		// special case
 		return true
@@ -50,9 +58,6 @@ func ValidPath(name string) bool {
 	for {
 		i := 0
 		for i < len(name) && name[i] != '/' {
-			if name[i] == '\\' {
-				return false
-			}
 			i++
 		}
 		elem := name[:i]
diff --git a/src/io/fs/fs_test.go b/src/io/fs/fs_test.go
index 8d395fc0db..aae1a7606f 100644
--- a/src/io/fs/fs_test.go
+++ b/src/io/fs/fs_test.go
@@ -33,9 +33,10 @@ var isValidPathTests = []struct {
 	{"x/..", false},
 	{"x/../y", false},
 	{"x//y", false},
-	{`x\`, false},
-	{`x\y`, false},
-	{`\x`, false},
+	{`x\`, true},
+	{`x\y`, true},
+	{`x:y`, true},
+	{`\x`, true},
 }
 
 func TestValidPath(t *testing.T) {
diff --git a/src/io/fs/glob.go b/src/io/fs/glob.go
index 549f217542..45d9cb61b9 100644
--- a/src/io/fs/glob.go
+++ b/src/io/fs/glob.go
@@ -6,7 +6,6 @@ package fs
 
 import (
 	"path"
-	"runtime"
 )
 
 // A GlobFS is a file system with a Glob method.
@@ -111,8 +110,8 @@ func glob(fs FS, dir, pattern string, matches []string) (m []string, e error) {
 // recognized by path.Match.
 func hasMeta(path string) bool {
 	for i := 0; i < len(path); i++ {
-		c := path[i]
-		if c == '*' || c == '?' || c == '[' || runtime.GOOS == "windows" && c == '\\' {
+		switch path[i] {
+		case '*', '?', '[', '\\':
 			return true
 		}
 	}
diff --git a/src/io/fs/glob_test.go b/src/io/fs/glob_test.go
index f0d791fab5..f19bebed77 100644
--- a/src/io/fs/glob_test.go
+++ b/src/io/fs/glob_test.go
@@ -17,6 +17,7 @@ var globTests = []struct {
 }{
 	{os.DirFS("."), "glob.go", "glob.go"},
 	{os.DirFS("."), "gl?b.go", "glob.go"},
+	{os.DirFS("."), `gl\ob.go`, "glob.go"},
 	{os.DirFS("."), "*", "glob.go"},
 	{os.DirFS(".."), "*/glob.go", "fs/glob.go"},
 }
@@ -32,7 +33,7 @@ func TestGlob(t *testing.T) {
 			t.Errorf("Glob(%#q) = %#v want %v", tt.pattern, matches, tt.result)
 		}
 	}
-	for _, pattern := range []string{"no_match", "../*/no_match"} {
+	for _, pattern := range []string{"no_match", "../*/no_match", `\*`} {
 		matches, err := Glob(os.DirFS("."), pattern)
 		if err != nil {
 			t.Errorf("Glob error for %q: %s", pattern, err)
diff --git a/src/os/file.go b/src/os/file.go
index 416bc0efa6..52dd94339b 100644
--- a/src/os/file.go
+++ b/src/os/file.go
@@ -620,10 +620,21 @@ func DirFS(dir string) fs.FS {
 	return dirFS(dir)
 }
 
+func containsAny(s, chars string) bool {
+	for i := 0; i < len(s); i++ {
+		for j := 0; j < len(chars); j++ {
+			if s[i] == chars[j] {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 type dirFS string
 
 func (dir dirFS) Open(name string) (fs.File, error) {
-	if !fs.ValidPath(name) {
+	if !fs.ValidPath(name) || runtime.GOOS == "windows" && containsAny(name, `\:`) {
 		return nil, &PathError{Op: "open", Path: name, Err: ErrInvalid}
 	}
 	f, err := Open(string(dir) + "/" + name)
diff --git a/src/os/os_test.go b/src/os/os_test.go
index ee54b4aba1..a32e5fc11e 100644
--- a/src/os/os_test.go
+++ b/src/os/os_test.go
@@ -2719,6 +2719,40 @@ func TestDirFS(t *testing.T) {
 	if err := fstest.TestFS(DirFS("./testdata/dirfs"), "a", "b", "dir/x"); err != nil {
 		t.Fatal(err)
 	}
+
+	// Test that Open does not accept backslash as separator.
+	d := DirFS(".")
+	_, err := d.Open(`testdata\dirfs`)
+	if err == nil {
+		t.Fatalf(`Open testdata\dirfs succeeded`)
+	}
+}
+
+func TestDirFSPathsValid(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skipf("skipping on Windows")
+	}
+
+	d := t.TempDir()
+	if err := os.WriteFile(filepath.Join(d, "control.txt"), []byte(string("Hello, world!")), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(d, `e:xperi\ment.txt`), []byte(string("Hello, colon and backslash!")), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	fsys := os.DirFS(d)
+	err := fs.WalkDir(fsys, ".", func(path string, e fs.DirEntry, err error) error {
+		if fs.ValidPath(e.Name()) {
+			t.Logf("%q ok", e.Name())
+		} else {
+			t.Errorf("%q INVALID", e.Name())
+		}
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
 }
 
 func TestReadFileProc(t *testing.T) {
diff --git a/src/runtime/metrics/doc.go b/src/runtime/metrics/doc.go
index 021a0bddca..5da050f973 100644
--- a/src/runtime/metrics/doc.go
+++ b/src/runtime/metrics/doc.go
@@ -16,13 +16,14 @@ Interface
 Metrics are designated by a string key, rather than, for example, a field name in
 a struct. The full list of supported metrics is always available in the slice of
 Descriptions returned by All. Each Description also includes useful information
-about the metric, such as how to display it (e.g. gauge vs. counter) and how difficult
-or disruptive it is to obtain it (e.g. do you need to stop the world?).
+about the metric, such as how to display it (for example, gauge vs. counter)
+and how difficult or disruptive it is to obtain it (for example, do you need to
+stop the world?).
 
 Thus, users of this API are encouraged to sample supported metrics defined by the
 slice returned by All to remain compatible across Go versions. Of course, situations
 arise where reading specific metrics is critical. For these cases, users are
-encouranged to use build tags, and although metrics may be deprecated and removed,
+encouraged to use build tags, and although metrics may be deprecated and removed,
 users should consider this to be an exceptional and rare event, coinciding with a
 very large change in a particular Go implementation.
 
diff --git a/src/runtime/metrics/sample.go b/src/runtime/metrics/sample.go
index 35534dd70d..b3933e266e 100644
--- a/src/runtime/metrics/sample.go
+++ b/src/runtime/metrics/sample.go
@@ -32,9 +32,9 @@ func runtime_readMetrics(unsafe.Pointer, int, int)
 //
 // Note that re-use has some caveats. Notably, Values should not be read or
 // manipulated while a Read with that value is outstanding; that is a data race.
-// This property includes pointer-typed Values (e.g. Float64Histogram) whose
-// underlying storage will be reused by Read when possible. To safely use such
-// values in a concurrent setting, all data must be deep-copied.
+// This property includes pointer-typed Values (for example, Float64Histogram)
+// whose underlying storage will be reused by Read when possible. To safely use
+// such values in a concurrent setting, all data must be deep-copied.
 //
 // It is safe to execute multiple Read calls concurrently, but their arguments
 // must share no underlying memory. When in doubt, create a new []Sample from
diff --git a/src/runtime/metrics/value.go b/src/runtime/metrics/value.go
index 61e8a192a3..ed9a33d87c 100644
--- a/src/runtime/metrics/value.go
+++ b/src/runtime/metrics/value.go
@@ -33,7 +33,7 @@ type Value struct {
 	pointer unsafe.Pointer // contains non-scalar values.
 }
 
-// Kind returns the a tag representing the kind of value this is.
+// Kind returns the tag representing the kind of value this is.
 func (v Value) Kind() ValueKind {
 	return v.kind
 }
diff --git a/test/reflectmethod7.go b/test/reflectmethod7.go
new file mode 100644
index 0000000000..42429978b4
--- /dev/null
+++ b/test/reflectmethod7.go
@@ -0,0 +1,24 @@
+// run
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// See issue 44207.
+
+package main
+
+import "reflect"
+
+type S int
+
+func (s S) M() {}
+
+func main() {
+	t := reflect.TypeOf(S(0))
+	fn, ok := reflect.PtrTo(t).MethodByName("M")
+	if !ok {
+		panic("FAIL")
+	}
+	fn.Func.Call([]reflect.Value{reflect.New(t)})
+}