diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2bdd2c42..12840cf7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -37,7 +37,7 @@ packages:
         - clr-host
         - hp2pretty # With permission of Claude Heiland-Allend
         - floatshow # https://bitbucket.org/dafis/floatshow/issues/1/add-to-stackage
-        - threepenny-editors
+        # - threepenny-editors # GHC 8.2.1 via threepenny-gui
         - clr-inline  # possibly nondeterministic failures, see https://github.com/fpco/stackage/issues/2510
 
     "Joshua Koike <jkoike2013@gmail.com> @jano017":
@@ -46,7 +46,7 @@ packages:
 
     "Roman Gonzalez <romanandreg@gmail.com> @roman":
         - etc
-        - teardown
+        # - teardown # GHC 8.2.1
 
     "Richard Cook <rcook@rcook.org> @rcook":
         - hidden-char
@@ -65,7 +65,7 @@ packages:
         - apportionment
         - audacity
         - bibtex
-        - board-games
+        # - board-games # GHC 8.2.1 via cgi
         - buffer-pipe
         - calendar-recycling
         - comfort-graph
@@ -82,7 +82,7 @@ packages:
         - event-list
         - explicit-exception
         - fixed-length
-        - gnuplot
+        # - gnuplot # GHC 8.2.1
         - group-by-date
         - iff
         - interpolation
@@ -129,7 +129,8 @@ packages:
         - ix-shapable
 
     "Jeremy Barisch-Rooney <barischj@tcd.ie> @barischj":
-       - threepenny-gui-flexbox
+        []
+        # - threepenny-gui-flexbox # GHC 8.2.1 via threepenny-gui
 
     "Romain Edelmann <romain.edelmann@gmail.com> @redelmann":
         - distribution
@@ -143,11 +144,11 @@ packages:
     "Simon Jakobi <simon.jakobi@gmail.com> @sjakobi":
         - path
         - present
-        - threepenny-gui
+        # - threepenny-gui # GHC 8.2.1 via snap-server
 
     "Joe M <joe9mail@gmail.com> @joe9":
         - logger-thread
-        - text-generic-pretty
+        # - text-generic-pretty # GHC 8.2.1 via ixset-typed
 
     "Li-yao Xia <lysxia@gmail.com> @Lysxia":
         - boltzmann-samplers
@@ -293,7 +294,7 @@ packages:
         - alex
         - async
         - base16-bytestring
-        - c2hs
+        # - c2hs # GHC 8.2.1 via shelly
         - csv-conduit
         - executable-hash
         - executable-path
@@ -373,7 +374,8 @@ packages:
         - mandrill
 
     "Jon Schoning <jonschoning@gmail.com> @jonschoning":
-        - pinboard
+        []
+        # - pinboard # GHC 8.2.1
 
     "Jasper Van der Jeugt @jaspervdj":
         - blaze-html
@@ -385,7 +387,7 @@ packages:
         - profiteur
         - psqueues
         - websockets
-        - websockets-snap
+        # - websockets-snap # GHC 8.2.1 via snap-server
 
     "Sibi Prabakaran <sibi@psibi.in> @psibi":
         - download
@@ -398,7 +400,7 @@ packages:
         - hourglass-orphans
         - wai-slack-middleware
         - sysinfo
-        - xmonad-extras
+        # - xmonad-extras # GHC 8.2.1 via libmpd
 
     "haskell-openal":
         - OpenAL
@@ -492,7 +494,7 @@ packages:
     "Edward Kmett <ekmett@gmail.com> @ekmett":
         - ad
         - adjunctions
-        - approximate
+        # - approximate # GHC 8.2.1 via safecopy
         - bifunctors
         - bits
         - bound
@@ -501,7 +503,7 @@ packages:
         - comonad
         - comonads-fd
         - comonad-transformers
-        - compensated
+        # - compensated # GHC 8.2.1 via safecopy
         # - compressed # bounds: comonad, pointed
         - concurrent-supply
         - constraints
@@ -515,7 +517,7 @@ packages:
         - graphs
         - groupoids
         - heaps
-        - hyperloglog
+        # - hyperloglog # GHC 8.2.1 via safecopy
         - hyphenation
         - integration
         - intervals
@@ -524,7 +526,7 @@ packages:
         - lens
         - linear
         - linear-accelerate
-        - log-domain
+        # - log-domain # GHC 8.2.1 via safecopy
         - machines
         - monadic-arrays
         - monad-products
@@ -597,7 +599,7 @@ packages:
         # - diagrams-svg # bounds: optparse-applicative
         - dual-tree
         - force-layout
-        - haxr
+        # - haxr # GHC 8.2.1 via http-streams
         - MonadRandom
         - monoid-extras
 
@@ -701,7 +703,7 @@ packages:
     "Chris Allen <cma@bitemyapp.com> @bitemyapp":
         - machines-directory
         - machines-io
-        - bloodhound
+        # - bloodhound # GHC 8.2.1
         - esqueleto # bounds: persistent
 
     "Adam Bergmark <adam@bergmark.nl> @bergmark":
@@ -784,8 +786,8 @@ packages:
         - tasty-smallcheck
         - tasty-html
         - time-lens
-        - timezone-olson
-        - timezone-series
+        # - timezone-olson # GHC 8.2.1
+        # - timezone-series # GHC 8.2.1
         - traverse-with-class
         - tuples-homogenous-h98
 
@@ -803,9 +805,9 @@ packages:
 
     "Joachim Breitner <mail@joachim-breitner.de> @nomeata":
         - circle-packing
-        - arbtt
+        # - arbtt # GHC 8.2.1 via bytestring-progress
         - ghc-heap-view
-        - tttool
+        # - tttool # GHC 8.2.1
         # - gipeda # via cassava: bounds: vector
         - list-fusion-probe
         - haskell-spacegoo
@@ -829,7 +831,7 @@ packages:
         - naqsha
 
     "Joey Hess <id@joeyh.name> @joeyh":
-        - git-annex
+        # - git-annex # GHC 8.2.1 via aws
         # - github-backup # bounds: github
         - Win32-extras
         - concurrent-output
@@ -943,7 +945,7 @@ packages:
         - wai-middleware-caching-lru
         - wai-middleware-caching-redis
         # not package maintainer
-        - ekg
+        # - ekg # GHC 8.2.1 via snap-server
         - ekg-json
 
     "Paul Rouse <pgr@doynton.org> @paul-rouse":
@@ -1114,7 +1116,7 @@ packages:
         - hdocs
         - hformat
         # - hsdev # bounds: mmorph
-        - simple-log
+        # - simple-log # GHC 8.2.1
         - text-region
 
     "Aleksey Kliger <aleksey@lambdageek.org> @lambdageek":
@@ -1128,7 +1130,7 @@ packages:
         - machines-process
         # - sarsi # bound: cryptonite
         # on behalf of Bryan O'Sullivan @bos:
-        - wreq
+        # - wreq # GHC 8.2.1 via snap-server
 
     "Andraz Bajt <andraz@bajt.me> @edofic":
         - effect-handlers
@@ -1140,13 +1142,13 @@ packages:
         - HaskellNet-SSL
 
     "Jens Petersen <juhpetersen@gmail.com> @juhp":
-        - cabal-rpm
+        # - cabal-rpm # GHC 8.2.1
         - stackage-query
         # - cabal-sort # BLOCKED directory 1.3
         # - idris # bounds aeson
         - libffi
         - xmonad-contrib
-        - shelly
+        # - shelly # GHC 8.2.1
 
         - cairo
         - gio
@@ -1175,10 +1177,10 @@ packages:
         # - pipes-network # bounds: pipes 4.3
 
     "Tomas Carnecky @wereHamster":
-        - avers
-        - avers-api
-        - avers-api-docs
-        - avers-server
+        # - avers # GHC 8.2.1
+        # - avers-api # GHC 8.2.1
+        # - avers-api-docs # GHC 8.2.1
+        # - avers-server # GHC 8.2.1
         - css-syntax
         - etcd
         - github-types
@@ -1210,8 +1212,8 @@ packages:
     "Leon Mergen <leon@solatis.com> @solatis":
         - base32string
         - base58string
-        - bitcoin-api
-        - bitcoin-api-extra
+        # - bitcoin-api # GHC 8.2.1 via wreq
+        # - bitcoin-api-extra # GHC 8.2.1 via wreq
         - bitcoin-block
         - bitcoin-script
         - bitcoin-tx
@@ -1231,7 +1233,7 @@ packages:
         - microformats2-parser
         - hspec-expectations-pretty-diff
         - wai-cli
-        - magicbane
+        # - magicbane # GHC 8.2.1 via ekg-wai
 
     "Francesco Mazzoli <f@mazzo.li> @bitonic":
         - language-c-quote
@@ -1260,7 +1262,7 @@ packages:
         - github
         - insert-ordered-containers
         - integer-logarithms
-        - JuicyPixels-scale-dct
+        # - JuicyPixels-scale-dct # GHC 8.2.1
         - lattices
         - microstache
         - monad-http
@@ -1279,9 +1281,9 @@ packages:
         - waitra
 
         # scrive/log
-        - log # via bloodhound: bounds: vector
+        # - log # via bloodhound: bounds: vector # GHC 8.2.1 via ekg via snap-server
         - log-base
-        - log-elasticsearch # via bloodhound: bounds: vector
+        # - log-elasticsearch # via bloodhound: bounds: vector # GHC 8.2.1
         - log-postgres
 
         # Not a maintainer
@@ -1528,7 +1530,7 @@ packages:
         - jmacro-rpc
         - jmacro-rpc-happstack
         - jmacro-rpc-snap
-        - mbox
+        # - mbox # GHC 8.2.1
         - kmeans
         - boolsimplifier
         - cubicspline
@@ -1585,13 +1587,14 @@ packages:
         - setlocale
 
     "John Chee <cheecheeo+stackage@gmail.com> @chee1bot":
-        - cgi
+        []
+        # - cgi # GHC 8.2.1
 
     "Taylor Fausak <taylor@fausak.me> @tfausak":
         - autoexporter
         - bento
         - bmp # Maintained by @benl23x5.
-        - ekg-statsd # Maintained by @tibbe.
+        # - ekg-statsd # Maintained by @tibbe. # GHC 8.2.1
         - flow
         - github-release
         - gloss # Maintained by @benl23x5.
@@ -1600,11 +1603,11 @@ packages:
         - lackey
         - octane
         - overloaded-records # Maintained by @trskop.
-        - postgresql-simple-migration # Maintained by @ameingast.
+        # - postgresql-simple-migration # Maintained by @ameingast. # GHC 8.2.1
         - ratel
         - ratel-wai
         - rattletrap
-        - strive
+        # - strive # GHC 8.2.1
         - wuss
 
     "Marios Titas <redneb@gmx.com> @redneb":
@@ -1643,8 +1646,9 @@ packages:
         - annotated-wl-pprint
 
     "Yitz Gale <gale@sefer.org> @ygale":
-        - timezone-series
-        - timezone-olson
+        []
+        # - timezone-series # GHC 8.2.1
+        # - timezone-olson # GHC 8.2.1 via timezone-series
 
     "Josh Holland <josh@inv.alid.pw> @jshholland":
         - sandi
@@ -1664,11 +1668,11 @@ packages:
         - ghc-typelits-knownnat
         - ghc-typelits-natnormalise
         - clash-prelude
-        - clash-lib
-        - clash-vhdl
-        - clash-verilog
-        - clash-systemverilog
-        - clash-ghc
+        # - clash-lib # GHC 8.2.1
+        # - clash-vhdl # GHC 8.2.1
+        # - clash-verilog # GHC 8.2.1
+        # - clash-systemverilog # GHC 8.2.1
+        # - clash-ghc # GHC 8.2.1
 
     "Athan Clark <athan.clark@gmail.com> @athanclark":
         - commutative
@@ -1795,7 +1799,7 @@ packages:
         - bencode
         - hsebaysdk
         - dockerfile
-        - wai-middleware-throttle
+        # - wai-middleware-throttle # GHC 8.2.1 via token-bucket
         - yesod-auth-basic
 
     # "Alcides Viamontes <a.viamontes.esquivel@gmail.com> @alcidesv":
@@ -1877,9 +1881,9 @@ packages:
         - b9
         - type-spec
         - pretty-types
-        - mediabus
+        # - mediabus # GHC 8.2.1
         #- mediabus-fdk-aac # needs non-free libfdk-aac-dev
-        - mediabus-rtp
+        # - mediabus-rtp # GHC 8.2.1
 
     # "Will Thompson <will@willthompson.co.uk> @wjt":
         # - bustle # build failure against haskell-src-exts https://github.com/vasylp/hgettext/issues/10
@@ -1990,7 +1994,8 @@ packages:
         # - ipython-kernel # GHC 8
 
     "Andrés Sicard-Ramírez <asr@eafit.edu.co> @asr":
-        - Agda
+        []
+        # - Agda # GHC 8.2.1
 
     "James Cook <mokus@deepbondi.net> @mokus0":
         - dependent-sum
@@ -2001,7 +2006,7 @@ packages:
         # - misfortune # via random-fu: via log-domain: via safecopy: bounds: vector
 
     "Timo von Holtz <tvh@tvholtz.de> @tvh":
-        - ekg-wai
+        # - ekg-wai # GHC 8.2.1
         - haxl-amazonka
         - hasql-migration
         - servant-JuicyPixels
@@ -2048,8 +2053,9 @@ packages:
         - attoparsec-binary
 
     "Brandon Martin <brandon@codedmart.com> @codedmart":
+        []
         # - engine-io-wai # bounds websockets
-        - rethinkdb
+        # - rethinkdb # GHC 8.2.1
 
     "Michael Walker <mike@barrucadu.co.uk> @barrucadu":
         - both
@@ -2060,8 +2066,8 @@ packages:
         - hunit-dejafu
         - tasty-dejafu
         - irc-ctcp
-        - irc-conduit
-        - irc-client
+        # - irc-conduit # GHC 8.2.1
+        # - irc-client # GHC 8.2.1
 
     "Trevor Elliott <awesomelyawesome@gmail.com> @elliottt":
         - irc
@@ -2070,8 +2076,8 @@ packages:
         - emailaddress
         - envelope
         - from-sum
-        - hailgun
-        - hailgun-simple
+        # - hailgun # GHC 8.2.1
+        # - hailgun-simple # GHC 8.2.1
         - highlight
         # - ig # bounds: http-conduit, transformers
         - natural-transformation
@@ -2142,7 +2148,7 @@ packages:
 
     "Andrew Cowie <andrew@operationaldynamics.com> @afcowie":
         - http-common
-        - http-streams
+        # - http-streams # GHC 8.2.1 via snap-server
 
     # "Devan Stormont <stormont@gmail.com> @stormont":
         # - forecast-io # bounds: aeson 1.0
@@ -2178,7 +2184,8 @@ packages:
         - titlecase
 
     "Mark Fine <mark.fine@gmail.com> @markfine":
-        - postgresql-schema
+        []
+        # - postgresql-schema # GHC 8.2.1 via shelly
         # - sbp # build failure
 
     "Jinjing Wang <nfjinjing@gmail.com> @nfjinjing":
@@ -2195,7 +2202,7 @@ packages:
         - find-clumpiness
         - blosum
         # - convert-annotation # via cassava: bounds: vector
-        - rank-product
+        # - rank-product # GHC 8.2.1 via random-fu
 
     "Simon Marechal <bartavelle@gmail.com> @bartavelle":
         - compactmap
@@ -2245,7 +2252,7 @@ packages:
 
     "Emmanuel Touzery <etouzery@gmail.com> @emmanueltouzery":
         - app-settings
-        - hsexif
+        # - hsexif # GHC 8.2.1
 
     "Nickolay Kudasov <nickolay.kudasov@gmail.com> @fizruk":
         - http-api-data
@@ -2335,7 +2342,7 @@ packages:
     "Luke Iannini <lukexi@me.com> @lukexi":
         - inline-c
         - inline-c-cpp
-        - ekg
+        # - ekg # GHC 8.2.1
 
     # "Emin Karayel <me@eminkarayel.de> @ekarayel":
         # - sync-mht # bounds: ghc, base
@@ -2375,7 +2382,7 @@ packages:
 
     "Will Sewell <me@willsewell.com> @willsewell":
         - benchpress
-        - pusher-http-haskell
+        # - pusher-http-haskell # GHC 8.2.1
 
     "Yorick Laupa yo.eight@gmail.com @YoEight":
         # - eventstore # bounds: aeson
@@ -2395,7 +2402,7 @@ packages:
 
     "Mihaly Barasz klao@nilcons.com @klao":
         - lens-datetime
-        - tz
+        # - tz # GHC 8.2.1 via timezone-series
         - tzdata
 
     "Timothy Klim <stackage@timothyklim.com> @TimothyKlim":
@@ -2425,7 +2432,7 @@ packages:
         - happstack-hsp
         - happstack-jmacro
         - happstack-server
-        - happstack-server-tls
+        # - happstack-server-tls # GHC 8.2.1
         - hsx-jmacro
         # - ixset # via safecopy: bounds: vector
         - reform
@@ -2454,10 +2461,10 @@ packages:
         # - hzulip # bounds: aeson, stm-conduit
         - list-prompt
         # - memoization-utils # bounds: time
-        - package-description-remote
+        # - package-description-remote # GHC 8.2.1 via wreq
         - projectroot
         - questioner
-        - stack-run-auto
+        # - stack-run-auto # GHC 8.2.1 via wreq
         # - hpack-convert # bounds: aeson 1.0
         - language-dockerfile
 
@@ -2478,7 +2485,7 @@ packages:
 
     "Hans-Christian Esperer <hc@hcesperer.org> @hce":
         - avwx
-        - wai-session-postgresql
+        # - wai-session-postgresql # GHC-8.2.1
 
     "Haisheng Wu <freizl@gmail.com> @freizl":
         - hoauth2
@@ -2519,9 +2526,9 @@ packages:
         - extensible-effects
 
     "Justus Adam <dev@justus.science> @JustusAdam":
-        - marvin >= 0.1.4
+        # - marvin >= 0.1.4 # GHC 8.2.1 via wreq
         - marvin-interpolate >= 1.1
-        - mustache
+        # - mustache # GHC 8.2.1 via wreq
 
     "Cindy Wang <cindylinz@gmail.com> @CindyLinz":
         - NoTrace
@@ -2548,7 +2555,7 @@ packages:
 
     "Elie Genard <elaye.github.io@gmail.com> @eliegenard":
         - turtle-options
-        - mushu
+        # - mushu # GHC 8.2.1 via libmpd
         # - hakyll-favicon # bounds: skylighting
 
     # "Ruey-Lin Hsu <petercommand@gmail.com> @petercommand":
@@ -2557,7 +2564,7 @@ packages:
     "Ozgun Ataman ozgun.ataman@soostone.com @ozataman":
         - string-conv
         - rng-utils
-        - rotating-log
+        # - rotating-log # GHC 8.2.1
         # - ua-parser # bounds aeson
         - hs-GeoIP
         - retry
@@ -2601,9 +2608,9 @@ packages:
 
     "Kei Hibino <ex8k.hibino@gmail.com> @khibino":
         - relational-query
-        - relational-query-HDBC
-        - persistable-types-HDBC-pg
-        - relational-record
+        # - relational-query-HDBC # GHC 8.2.1
+        # - persistable-types-HDBC-pg # GHC 8.2.1
+        # - relational-record # GHC 8.2.1
         - text-ldap
         - debian-build
         - json-rpc-generic
@@ -2657,7 +2664,7 @@ packages:
         - hw-succinct
 
     # "Ismail Mustafa <ismailmustafa@rocketmail.com> @ismailmustafa":
-        - handwriting
+        # - handwriting # GHC 8.2.1
 
     "Stephen Diehl <stephen.m.diehl@gamil.com> @sdiehl":
         - protolude
@@ -2754,8 +2761,9 @@ packages:
         - leapseconds-announced
 
     "Pavel Ryzhov <paul@paulrz.cz> @paulrzcz":
-        - hquantlib
-        - persistent-redis
+        []
+        # - hquantlib # GHC 8.2.1
+        # - persistent-redis # GHC 8.2.1
 
     "Henri Verroken <henriverroken@gmail.com> @hverr":
         - cache
@@ -2833,10 +2841,11 @@ packages:
 
     "Al Zohali <zohl@fmap.me> @zohl":
         - servant-auth-cookie < 0.4.1 || > 0.4.1
-        - dictionaries
+        # - dictionaries # GHC 8.2.1
 
     "Joachim Fasting <joachifm@fastmail.fm> @joachifm":
-        - libmpd
+        []
+        # - libmpd # GHC 8.2.1
 
     "Moritz Kiefer <moritz.kiefer@purelyfunctional.org> @cocreature":
         - lrucaching
@@ -2848,7 +2857,7 @@ packages:
         - hocilib
 
     # "Matthias Herrmann <matthias.mh.herrmann@gmail.com> @2chilled":
-        - scrape-changes
+        # - scrape-changes # GHC 8.2.1 via wreq
 
     "Daniel Mendler <mail@daniel-mendler.de> @minad":
         - quickcheck-special
@@ -2863,7 +2872,7 @@ packages:
         - unlit
         - intro
         - tasty-auto
-        - tasty-stats
+        # - tasty-stats # GHC 8.2.1
         - colorful-monoids
         - ihs
 
@@ -2900,7 +2909,8 @@ packages:
         - pqueue
 
     "Ryan Mulligan <ryan@ryantm.com> @ryantm":
-      - HDBC-mysql
+        []
+        # - HDBC-mysql # GHC 8.2.1
 
     "Tony Day <tonyday567@gmail.com> @tonyday567":
         - numhask
@@ -2956,7 +2966,7 @@ packages:
     "Kadzuya Okamoto <arow.okamoto@gmail.com> @arowM":
         - type-level-kv-list
         - heterocephalus
-        - bookkeeping
+        # - bookkeeping # GHC 8.2.1
 
     "Marcin Tolysz <tolysz@gmail.com> @tolysz":
         - rawstring-qm
@@ -2993,11 +3003,11 @@ packages:
         - haskell-tools-backend-ghc
         - haskell-tools-rewrite
         - haskell-tools-prettyprint
-        - haskell-tools-refactor
+        # - haskell-tools-refactor # GHC 8.2.1
         # - haskell-tools-demo # bounds: websockets
-        - haskell-tools-cli
-        - haskell-tools-daemon
-        - haskell-tools-debug
+        # - haskell-tools-cli # GHC 8.2.1
+        # - haskell-tools-daemon # GHC 8.2.1
+        # - haskell-tools-debug # GHC 8.2.1
 
     "David Fisher <ddf1991@gmail.com> @ddfisher":
         - socket-activation
@@ -3008,13 +3018,13 @@ packages:
         - snowtify
 
     "Mitsutoshi Aoe <maoe@foldr.in> @maoe":
-        - sensu-run
+        # - sensu-run # GHC 8.2.1 via wreq
         - viewprof
 
     "Dylan Simon <dylan-stack@dylex.net> @dylex":
-        - postgresql-typed
+        # - postgresql-typed # GHC 8.2.1
         - invertible
-        - ztail
+        # - ztail # GHC 8.2.1
 
     "Louis Pan <louis@pan.me> @louispan":
         - alternators
@@ -3094,12 +3104,13 @@ packages:
         - regex-pcre-text
 
     "Elliot Cameron <eacameron@gmail.com> @3noch":
-        - ziptastic-client
-        - ziptastic-core
+        []
+        # - ziptastic-client # GHC 8.2.1 via tz
+        # - ziptastic-core # GHC 8.2.1 via tz
 
     "Hardy Jones <jones3.hardy@gmail.com> @joneshf":
         - servant-ruby
-        - wai-middleware-rollbar
+        # - wai-middleware-rollbar # GHC 8.2.1
 
     "Andrey Mokhov <andrey.mokhov@gmail.com> @snowleopard":
         - algebraic-graphs
@@ -3242,7 +3253,6 @@ packages:
         - ghci < 8.2
         - process < 1.5
         - template-haskell < 2.12
-        - time < 1.7
         - hslua < 0.6
 
         # https://github.com/fpco/stackage/issues/2661