release/0.5.25

What's Changed

• Non-project code has been migrated to a project called legacy (or similar, if that name was already taken)
  • absolute paths are now relative to the root of your project.
  • more commands now accept paths/names from other branches in the form /branch:path.in.project
  • new reflog commands:
    • reflog/branch.reflog/reflog.branch shows the changes for the current branch
    • project.reflog/reflog.project shows changes to any branches in the current project
    • reflog.global shows changes across all projects
    • deprecated.root-reflog will show the reflog you had prior to the migration.
  • reset #hash can be used to reset the current branch to the hash you got from one of the reflog commands.
  • undo rewinds one node of history on the current branch, and will no longer cause any corruption or weirdness 😅🎉
• We replaced our custom pseudo-markdown parser for transcripts with a better, off-the-shelf one
• Misc message and speed improvements

All PRs since last release

• Nix support for GHC upgrade by @sellout in #5155
• Replace transcript parser with cmark by @sellout in #5204
• Use pretty text in MsgTrace case of debug toText by @dolio in #5210
• Project Roots by @ChrisPenner in #5041
• Remove NoSync versions of root branch primitives by @ChrisPenner in #5057
• Use builtin reference names in foreign decompiling by @dolio in #5216
• Fix unused binding annotations by @ChrisPenner in #5218
• Keep most recent path and branches through migration to version 17 by @ChrisPenner in #5220
• Don't evaluate the unison file if there are no watch expressions. by @ChrisPenner in #5223
• Speed up watch expression eval by @ChrisPenner in #5226
• Merge newest trunk in "Upgrade to LTS 22.26 GHC 9.6.5" by @neduard in #5224
• Upgrade to LTS 22.26 GHC 9.6.5 by @ChrisPenner in #5142
• Pin Haskell tool versions for VS Code by @sellout in #5228
• Silence some Stack complaints by @sellout in #5231
• Avoid duplicating YAML info in Markdown by @sellout in #5227
• Support native compilation on non-GNU Unix systems by @neduard in #5237
• Reformat all Haskell code by @sellout in #5239
• Remove now-unused sync types by @ChrisPenner in #5230
• Add cachix to the Nix devShell by @sellout in #5233
• Refactor transcript parser by @sellout in #5235
• Document Nix cache configuration by @sellout in #5232
• Remove reset-root, fix docs for reset by @ChrisPenner in #5243
• Update JIT generation template in ci.yaml by @neduard in #5240
• branch.reflog -> reflog by @ChrisPenner in #5244

Full Changelog: release/0.5.24...release/0.5.25

release/0.5.24

What's Changed

• fix an issue with merge that cause false positives for conflicts (#5194)
• updated todo command to show issues with the current branch
• add numbered results to test, io.test and io.test.all
• improve various CLI command error messages
• fix an LSP issue with hovering over names ending in !
• improve LSP completion sorting
• add unused binding warnings to the LSP

All PRs Since Last Release

• fix: fix the textual representation of an ordinal number by @etorreborre in #5135
• feat: add alias.term.force by @mitchellwrosen in #5118
• port old merge transcripts by @mitchellwrosen in #5138
• Add numbered results to test, io.test, and io.test.all by @sellout in #5140
• feat: add debug.alias.type.force by @mitchellwrosen in #5139
• Group test results by definition by @sellout in #5144
• Use projects in transcripts by @ChrisPenner in #5078
• JIT Infrastructure for continuation serialization by @dolio in #5152
• don't output nothing when there's nothing to do by @mitchellwrosen in #5147
• port old merge transcripts by @mitchellwrosen in #5146
• refactor: merge unison-util-nametree into unison-core1 by @mitchellwrosen in #5174
• Include trailing '!' in identifier names for hover by @ChrisPenner in #5175
• Port more transcripts to projects by @ChrisPenner in #5172
• Improve various CLI command error messages by @sellout in #5054
• move pretty-print helpers out of CommandLine.hs by @aryairani in #5180
• Improve LSP completion sorting by @ChrisPenner in #5182
• fix merge error, and use makeExample more by @aryairani in #5185
• Adds unused binding warnings to the LSP by @ChrisPenner in #5186
• Unused binding detection cleanup by @ChrisPenner in #5188
• avoid numeric vs textual clash in args length error by @aryairani in #5192
• bugfix: synhash var debruijn indices, not names by @mitchellwrosen in #5194
• Use SyntaxText.Unit as style for foo() by @pchiusano in #5195
• feat: report merge precondition violations in todo by @mitchellwrosen in #5177

Full Changelog: release/0.5.23...release/0.5.24

release/0.5.23

What's changed

• fixes sleep bug in Unison programs #3957
• fixes regression with switch
• updates todo command, now prints name conflicts, one level of missing names, and usages of todo ... in your project
• fixes merge bug which silently created unnamed dependencies #5092
• fixes merge bug involving constructor deletion
• fixes ability list roundtrip bug #4683
• fixes doc round trip bugs #4476, #4729
• supports docs.to-html at the branch root, using the same syntax as the fork command
• hides patches from ls as part of their continuing deprecation
• fixes typechecking bugs #5129, #3513
• !foo now renders as foo() in Unison source

All PRs since last release

• Update ormolu.yaml by @aryairani in #5103
• Update ormolu.yaml by @aryairani in #5104
• Implement custom Word64 delay by @dolio in #5102
• updating tj-actions/changed-files to v44 by @aryairani in #5105
• bugfix: switch to most recent branch by @mitchellwrosen in #5100
• bugfix: merge involving constructor deletion by @mitchellwrosen in #5110
• Remove the Convert and Parse type classes by @sellout in #5115
• Improve Haddock for Path and Name by @sellout in #5109
• drop branch filter for CI runs by @aryairani in #5113
• bugfix: don't emit virtual semis inside { or [ by @mitchellwrosen in https://github.com//pull/5117
• Fix roundtrip bug when sub-docs contain headings by @neduard in #5120
• Fix roundtrip bug in Bytes.splitAt.doc by @neduard in #5121
• Support branch-relative paths for docs.to-html by @sellout in #5111
• Improve some lexer error messages by @sellout in #5108
• feat: hide patches from ls output by @mitchellwrosen in #5123
• feat: (partially) revamp todo by @mitchellwrosen in #5107
• add transcript that demonstrates bug in merge by @mitchellwrosen in #5130
• Prefer foo() to !foo by @pchiusano in #5114
• GHC 964 Fixes by @neduard in #5106
• Don't relax type when doing an instantiateL during subtyping by @dolio in #5133
• feat: show dependents of todo (builtin) in todo (command) output by @mitchellwrosen in #5124

Full Changelog: release/0.5.22...release/0.5.23

release/0.5.22

What's Changed

Features:

• new command merge.commit (analogous to upgrade.commit). UCM will remind you about it when you run the merge command.

• ucm transcript now auto-creates a projects given in the transcript prompt:

    Using `project.create-empty` not necessary in this transcript:
  
    ```ucm
    demo-project/main> ls
    ```
  

Fixed Bugs:

• ls wasn't working right with numbered args
• edit.namespace was printing record accessors as standalone definitions
• push error messages were previously not being displayed
• updating and deleting aliases erroneously tripped “conflicted alias” error during merge
• improved some error messages for push & merge

All PRs since last release

• format trunk with ormolu 0.5.2.0 by @github-actions in #5051
• Convert ShallowListEntry in InputPattern handlers by @sellout in #5056
• Improve ls with numbered arg behavior by @sellout in #5061
• bugfix: show push error messages by @mitchellwrosen in #5065
• bugfix: updating and deleting aliases erroneously tripped "conflicted alias" merge precondition by @mitchellwrosen in #5067
• tweak: make edit.namespace not render record accessors by @mitchellwrosen in #5068
• Create issue templates by @aryairani in #5064
• Update merge precondition message: Conflicted aliases by @aryairani in #5070
• fix conflicted alias message 2 by @aryairani in #5071
• Auto-create project-branches referenced in transcript prompts by @ChrisPenner in #5077
• feat: add merge.commit command by @mitchellwrosen in #4986
• Remove no longer necessary special setup instructions for Mac Silicon by @neduard in #5087

New Contributors

• @neduard made their first contribution in #5087

Full Changelog: release/0.5.21...release/0.5.22

release/0.5.21

What's changed

Fun stuff 🎉

• This release introduces a much improved merge and pull algorithm. The experience is similar to update or upgrade - if there are conflicts (or if the result doesn't typecheck), you are given a scratch file to get compiling. This is very new; let us know you run into any issues!
• The new upgrade.commit command will merge and remove the temporary branch created during an upgrade that required manual intervention. An analogous merge.commit will be in an upcoming release.
• A new lib.install command replaces the use of pull for installing libraries. Usage: lib.install @unison/base/releases/latest and use help lib.install for details.

Important deprecations 🪦

• UCM can no longer push or pull the old Git-based Unison codebases. Use UCM 0.5.20 or earlier to migrate them to Unison Share!

Lovely bugfixes 🐞

• A bug was causing delete.namespace to sometimes remove the last names for things without any warning. (4988)
• A bug was causing some commands to work off of an out-of-date namespace. (5027)
• find followed by docs <n> would fail. (5012)
• dependents followed by delete <n> would fail. (5019)
• UCM would just complain if a scratch file it wanted to write to didn't exist. (4973)
• auth.login was invisible in help. (5028)
• The ui command couldn't find its data files when using the ucm launcher script included in manual installs. (5048)/(5050)
• A bug caused hashes to be displayed in the LSP diagnostics. (#4960)
• LSP diagnostics were one change behind. (4957)
• The JIT version of zlib.compress on a >64k buffer. (4961)

All new PRs in this release

• Fix hashes in LSP diagnostic names by @ChrisPenner in #4960
• Update sqlite3 codebase before changing in-app values by @ChrisPenner in #4957
• feat: add lib.install command by @mitchellwrosen in #4953
• feat: better merge algorithm by @mitchellwrosen in #4910
• Fix jit zlib-deflate by @dolio in #4961
• Unison local Definition Diffs API by @ChrisPenner in #4964
• Definition Diff machinery by @ChrisPenner in #4766
• tweak: make upgrade-failed branch name more informative by @mitchellwrosen in #4974
• tweak: make prependUtf8 create file if it doesn't exist by @mitchellwrosen in #4973
• feat: make pull call new merge instead of old merge by @mitchellwrosen in #4966
• tweak: slightly improve help lib.install by @mitchellwrosen in #4972
• Remove unused incoming hashes event by @ChrisPenner in #4991
• improve push output by @mitchellwrosen in #4990
• Fix delete namespace dependents check by @ChrisPenner in #4998
• bugfix: lib.install couldn't install something from a project with a dash in its name, like @unison/uri-parser by @mitchellwrosen in #4999
• update cachix actions to latest by @aryairani in #5001
• update workflows for lib.install by @aryairani in #5002
• Remove unused Unison.Util.Convert module by @sellout in #5005
• cleanup: delete a bunch of patch manipulation commands by @mitchellwrosen in #5008
• Repair the Nix flake by @sellout in #4923
• Add an EditorConfig config by @sellout in #5015
• Remove support for Git push/pull and gists by @ChrisPenner in #5013
• bug(?)fix: relax lca merge preconditions by @mitchellwrosen in #5020
• Avoid printing/parsing numbered args by @sellout in #4962
• Docs name by @sellout in #5012
• Remove Reference from StructuredArgument by @sellout in #5019
• Type the main arg to execute by @sellout in #5003
• make auth.login visible by @aryairani in #5028
• Update .mergify.yml by @aryairani in #5029
• feat: add upgrade.commit command by @mitchellwrosen in #4977
• improve merge precondition violation output messages by @mitchellwrosen in #5032
• only use iohk cache on linux by @aryairani in #5033
• Restrict NameSegment operations by @sellout in #5010
• Add a Nix formatter and run it by @sellout in #5035
• Remove flake-compat flake input by @sellout in #5037
• Fix branch invariants by @ChrisPenner in #5027
• Run Cabal test-suites as Nix checks by @sellout in #5036
• improve upgrade failure message by @mitchellwrosen in #5039
• tweak pull-related error messages by @mitchellwrosen in #5046
• pass --ui flag in default launcher by @aryairani in #5048
• Fix a few minor typos in InputPatterns.hs by @atroche in #5038
• Add a transcript illustrating that #1532 is fixed by @sellout in #5042
• the --ui flag conflicts with commands, like transcript by @aryairani in #5050

New Contributors

• @atroche made their first contribution in #5038

Full Changelog: release/0.5.20...release/0.5.21

release/0.5.20

What's Changed

Fun stuff 🎉

• This release includes a beta version of the Unison just-in-time/native runtime. You can try it by using the new run.native command in place of the run command. Let us know if you have any issues!
• Ahead-of-time native compilation to produce a standalone executable is coming soon. If you're running Linux, you can try this today using compile.native; Mac and Windows support are next.
• @kylegoetz added an implementation of UDP networking, and @etorreborre added an implementation of RSA signing and signature verification. We'll be adding this functionality to base soon!

Important deprecations, please read

• The cd command and the up command have gone away for maintenance, as they are not yet fully compatible with projects. In the mean time
  • we've added find-in <path> <expression> to replace cd <path>+find <expression>+back
  • and added test <path> to replace cd <path>+test+back.
  • In an emergency where you know what you're doing, you can still use deprecated.cd, and then come let us know what happened on Discord.
• We are starting to deprecate non-project code, and with this release, you can no longer push to the non-project code area on Share. Check out the https://www.unison-lang.org/docs/tooling/projects-library-migration/ for help on converting your non-projects to projects. You can still pull non-project code from Share, but that will be going away soon too, so get busy :)

Under-the-hood fixes

• @upendra1997 submitted a color scheme adjustment which was causing some text to appear invisible for some users.
• The builtins.merge and builtins.mergeio commands (which most people don't use or need) also accept an optional destination path now.
• The decompiler output now supports immutable arrays, and partially-applied built-in functions.
• We fixed an issue in the LSP involving auto-completion and punctuation.
• The pretty-printer now prefers do <expr> in some cases where it previously printed '(<expr>). The ' syntax is still accepted.
• We fixed an issue with backtracking in Pattern.many, Pattern.or, and Pattern.replicate.
• We made a tweak to the name-resolution rules, which were impacting type-directed name resolution.

All PRs since last release

• Update language-server.markdown for helix 23.10 by @bbarker in #4792
• Update nix development docs by @tstat in #4793
• Disable hoogle in haskell-nix shell by @ceedubs in #4795
• Fix auto-completion's treatment of paths by @ChrisPenner in #4791
• figure out windows CI issue by @aryairani in #4797
• Prefer do instead of ' in pretty-printer by @pchiusano in #4796
• add a sentence distinguishing reusable workflows and composite actions by @aryairani in #4803
• move stack install to composite action by @aryairani in #4798
• build test and bench dependencies with "build dependencies" by @aryairani in #4799
• split off ormolu task by @aryairani in #4800
• Update cabal.project by @ceedubs in #4794
• Fix many pattern not backtracking by @dolio in #4790
• Fix up uses of typelinks in the jit by @dolio in #4810
• bugfix: tweak name priority for tdnr by @mitchellwrosen in #4808
• Add missing builtin links to unison/data and /boot by @dolio in #4814
• see if this fixes the haddocks workflow by @aryairani in #4812
• trying to fix pre-release.yaml by @aryairani in #4815
• clean up release workflows (no jit yet) by @aryairani in #4804
• fixup re haddocks which is weird and only gets tested on merge to trunk by @aryairani in #4816
• fix up refs for release builds by @aryairani in #4819
• accept stack.yaml dir as input to stack caching by @aryairani in #4820
• fix surprise invalid string by @aryairani in #4821
• Improve kind inference docs by @tstat in #4822
• A few jit nimbus related fixes/tweaks by @dolio in #4823
• Neglected to update ci.yaml for jit by @dolio in #4825
• Fix a bug in the jit's runtime code caching operation by @dolio in #4826
• move stack actions to dedicated repo by @aryairani in #4824
• haddocks workflow: git config needed before commit by @aryairani in #4827
• Update pre-release.yaml download to match upload by @aryairani in #4831
• Give a more informative error for miscellaneous try-eval by @dolio in #4832
• add github.ref to prerelease workflow name by @aryairani in #4833
• that did not work by @aryairani in #4834
• split TH parts of unison-cli into unison-cli-main by @aryairani in #4829
• Fix conversion from referent2to1 for Doc fuzzyfind results by @ChrisPenner in #4840
• hide run.native and compile.native until release by @aryairani in #4842
• Flesh out jit universal comparison by @dolio in #4841
• actually do jit release stuff by @aryairani in #4828
• tweaks for jit packaging by @aryairani in #4845
• Split corrected many pattern into two patterns by @dolio in #4846
• Fix an issue with rehashing and scratch files by @dolio in #4847
• Fix some inconsistencies in the time functions in the jit by @dolio in #4849
• add quotes around path to ucm by @aryairani in #4862
• try retrieving runtime tests from Share by @aryairani in #4857
• merge unison-cli:lib and unison-cli:lib:unison-cli-lib by @mitchellwrosen in #4860
• split off transcripts and interpreter tests to separate jobs by @aryairani in #4865
• bugfix: don't go looking for field names of a hash-only decl by @mitchellwrosen in #4818
• Some jit fixes for cloud tests by @dolio in #4864
• restore git user setup for transcripts test by @aryairani in #4866
• chore: remove repetitive words by @guqicun in #4867
• Updates for Share diffs feature by @ChrisPenner in #4870
• install linux libb2 on build or test by @aryairani in #4874
• Check the exit code during native evaluation by @dolio in #4869
• Upgrade jit share dependency to fix link validation by @dolio in #4876
• Adds the scheme-libs hash to the cache keys for jit binaries and jit runtime test results by @aryairani in #4889
• Decompile partially applied builtin functions by @dolio in #4888
• Deprecate pushing loose code from UCM by @ChrisPenner in #4890
• Add docker image to nix outputs by @ceedubs in #4891
• Use a socket to communicate with the jit runtime process by @dolio in #4887
• Try define-runtime-path for libb2 by @aryairani in #4892
• Allow decompilation of arrays by @dolio in #4895
• Fix duplicate definitions in jit when using scratch files by @dolio in #4897
• Tweak crypto ffi for better dependencies by @dolio in #4900
• try libb2-1 instead of libb2-dev by @aryairani in #4901
• deprecate cd, up; add find-in by @aryairani in #4883
• re-merge #4883 by @aryairani in #4903
• transcripts mergeio cleanup by @aryairani in #4885
• add an optional destination path to builtins.merge{,io} by @aryairani in #4886
• Merge in 3 by @aryairani in #4905
• rename job in ci-test-jit.yaml by @aryairani in #4906
• Add Ed25519 to racket crypto.rkt by @jaredly in #4902
• Add history lines AFTER numbered arg and fzf expansion by @ChrisPenner in #4907
• Jit eror ci fixes by @aryairani in #4917
• Fix representation mismatches w...

release/0.5.19

What's changed

• upgrade now allows library authors to repurpose names for a different definition, without breaking any downstream users. That is, you can rename a definition, then add a new definition with the original name but new behavior, without forcing library users to update to the new definition when they upgrade. #4720
• Fixes an annoying issue where record types weren't being printed as records (reported and fixed by @runarorama)
• Improves speed of merge via a faster ancestry check to find the LCA.
• Greatly improves the error message when the scratch file fails to even parse.
• Improves error messages and type inference for match statements (now, if the type of the overall match is known, that information is pushed down into the branches of the match, which behaves more nicely)

We've also made improvements and fixes to the new just-in-time native compiler, though the feature is still not quite ready for general use.

All PRs since last release

• Update release-steps.md by @aryairani in #4739
• tweak: make upgrade not touch things that exist in new dep by @mitchellwrosen in #4720
• updated third-party-facing Slack to Discord refs by @kylegoetz in #4743
• Fix a variable capture issue during let floating by @dolio in #4756
• Fix field accessors not showing up in view in some cases by @runarorama in #4752
• Allow tuning sync config with env vars by @ChrisPenner in #4767
• Vastly speed up ancestry check by not re-crawling duplicate histories. by @ChrisPenner in #4753
• Rework racket based runtime/compilation by @dolio in #4675
• Push type checking through match statements by @dolio in #4768
• fix default path for unison-runtime by @aryairani in #4774
• YAML: try changing ormolu commit conditions by @aryairani in #4775
• Create ormolu.yaml by @aryairani in #4776
• Minor JIT fixes by @dolio in #4779
• Fix builtin link reflection in jit by @dolio in #4785
• Better error messages for generic parser failures by @ChrisPenner in #4788
• fix condition on ormolu manual workflow by @aryairani in #4778
• autoformat aryairani-patch-4 by @github-actions in #4784

New Contributors

• @github-actions made their first contribution in #4784

Full Changelog: release/0.5.18...release/0.5.19

release/0.5.18

What's changed

• Definitions in operator subnamespaces (like List.++.doc) now round-trip.
• Builtin support for Ed25519 signatures.

All PRs since last release

• Update CI badge in README.md by @aryairani in #4710
• stop forgetting to ping @everyone for new releases by @aryairani in #4700
• add export list to Unison.Codebase.Metadata by @aryairani in #4712
• Update copyright by @aryairani in #4718
• remove metadata types from the in-memory branches by @aryairani in #4714
• remove metadata types from the in-memory branches by @aryairani in #4719
• Backticky symbol parsing by @mitchellwrosen in #3525
• Ed25519 builtins for Haskell by @dolio in #4717
• Enable Hash Validation in UCM by @ChrisPenner in #4716
• Local Hash Validation fixups by @ChrisPenner in #4694
• Ensure we tag latest trunk for releases by @ChrisPenner in #4721

Full Changelog: release/0.5.17...release/0.5.18

release/0.5.17

What's Changed

• Fix Folding Ranges by @ChrisPenner in #4674
• Add tab-completion and fzf for upgrade command by @ChrisPenner in #4677
• Add Name ToJSONKey instance by @ChrisPenner in #4679
• Add parens to annotation of lexed symboly segments by @ChrisPenner in #4689
• Disable lsp-formatting by default, opt in via --lsp-format flag by @ChrisPenner in #4691

Full Changelog: release/0.5.16...release/0.5.17

release/0.5.16

What's Changed

• Add Explicit Export Lists for Modules that involve Parsing by @setupminimal in #2664
• update release template, urls and discord syntax by @aryairani in #4663
• Add message for share hash mismatch by @ChrisPenner in #4665
• Allow multi-line bold, italics, and strikethrough by @ChrisPenner in #4670
• Fix formatting on handle-with blocks by @ChrisPenner in #4671

New Contributors

• @setupminimal made their first contribution in #2664

Full Changelog: release/0.5.15...release/0.5.16