Bug Fixes:

• Fix infinite recursion when using config.env.* in processes conditions (#2278) - Using processes = lib.mkIf
  (config.env.X == ...) {...} would cause infinite recursion due to circular dependencies in process-compose.nix. The config is now properly split using
  lib.mkMerge.
• Fix recursive glob matching for hidden directories (#2286) - Task glob patterns now correctly ignore hidden
  files/directories unless explicitly specified.
• Fix secretspec breaking with direnv (#2308) - Updated secretspec to 0.4.1.

What's Changed

• Fix spurious environment re-evaluation by @mrene in #2306

Full Changelog: v1.11...v1.11.1

What's Changed

• Make it posible to override pre-commit binary by @leiserfg in #2204
• refactor: implement wiring for a richer terminal interface by @sandydoo in #2195
• erlang: upgrade beam and lsp by @sandydoo in #2218
• dev: turn docs/ into a devenv sub-project by @sandydoo in #2221
• devenv-tasks: fix task shutdown using tokio-shutdown by @sandydoo in #2222
• tasks: add type to support processes by @domenkozar in #2220
• ci: allow overriding the nixpkgs used in tests by @sandydoo in #2208
• scripts: simplify wrapper script by @sandydoo in #2226
• Document .env secret leak to nix store by @pkel in #2228
• tasks: fix process output being red by @domenkozar in #2230
• Inputs from by @domenkozar in #2229
• tasks: fix bug preventing from using non-bash task runners by @sandydoo in #2233
• devenv: improve jobs/cores defaults by @sandydoo in #2227
• Make Crystal and Shards packages configurable by @straight-shoota in #2235
• devenv: add ability to output JSON traces by @sandydoo in #2239
• devenv-generate: patch for CVE-2025-62518 by @sandydoo in #2241
• add nats service and related tests by @onsails in #2240
• tasks: add showOutput option and --show-output flag by @domenkozar in #2231
• feat: add treefmt integration by @tarc in #2238
• refactor: Remove run_nix* from NixBackend trait interface by @domenkozar in #2242
• docs: refactor doc gen to support optional sub-modules by @sandydoo in #2244
• treefmt: make config option definition conditional by @sandydoo in #2247
• containers: build the devenv image using nix and with a non-root user by @sandydoo in #2250
• treefmt: fix conflicting tree-root options when wrapping treefmt by @sandydoo in #2251
• refactor: use struct for passing args to Nix flake template by @domenkozar in #2256
• Add languages.rust.toolchainFile option for rust-toolchain.toml support by @tennox in #2257
• refactor: extract Cachix logic into separate module by @domenkozar in #2253
• keycloak: fix health check when using http-relative-path by @mrene in #2261
• elixir_ls has been renamed to elixir-ls by @ankhers in #2264
• docs: explain when to use the functional form for profiles by @sandydoo in #2263
• containers: fix the devenv container build by @sandydoo in #2266
• docs: Fix inconsistency in monorepo guide by @dan-os in #2268
• tests: ensure that the base enterTest config comes first by @sandydoo in #2269
• fix: set mprocs procs to use cwd parameter by @c4patino in #2271
• devenv-core & devenv-snix-backend by @domenkozar in #2275
• python: support withPackages with venvs and prepare for upstream patch by @sandydoo in #2234
• feat: add profile field to devenv.yaml for setting default profiles by @domenkozar in #2285
• feat: add Treefmt tasks by @shikanime in #2282
• Fix: Docs: devenv up fails because of missing library: cairo. by @hencjo in #2292
• Clarify contributing-guide: local devenv input by @hencjo in #2291
• git-hooks: support git-hooks being an optional input by @sandydoo in #2295
• tasks: fix race condition causing truncated task output by @domenkozar in #2296
• Docs: Clarify that changes to src/modules does not require rebuilding the binary by @hencjo in #2298
• Introduced new option: services.mongodb.replication by @hencjo in #2293
• flakes: share the same mkEval between flakes and flake-parts by @sandydoo in #2267
• Add changelogs to modules by @domenkozar in #2300
• nixseparatedebuginfod: new module by @midchildan in #1242

New Contributors

• @pkel made their first contribution in #2228
• @tarc made their first contribution in #2238
• @dan-os made their first contribution in #2268
• @c4patino made their first contribution in #2271
• @shikanime made their first contribution in #2282
• @hencjo made their first contribution in #2292

Full Changelog: v1.10...v1.11

Overview

devenv 1.10 brings monorepo support with devenv.yaml imports - the most upvoted feature request #14 with 75 votes!

devenv.yaml Imports with Configuration Merging

• Fixes: #14, #817
• Local imports now load and merge both devenv.nix and
  devenv.yaml configurations
• Supports proper merge strategies for all configuration fields
• Handles circular imports and nested imports
• Enforces security restrictions on path traversal
• Added comprehensive test coverage with multiple fixture
  scenarios

Absolute and Parent Directory Imports

• Fixes: #998
• Paths starting with / are now resolved from your git repository
  root
• Parent directory imports with ../ are now supported
• Enables consistent references to shared configurations across
  nested projects
• Improved path normalization and error messages

Git Root Detection

• Fixes: #1850, #316
• New config.git.root variable provides the git repository root
  path
• Useful for specifying working directories in tasks and
  processes
• Enables reusing modules across different directories

devenv.local.yaml Support

• Fixes: #817
• Added support for devenv.local.yaml alongside devenv.local.nix
• Automatically git-ignored for developer-specific overrides
• Properly loaded after directory setup via .patch.sh

Full Changelog:
v1.9.2...v1.10

What's Changed

• docs: fix syntax error in /extending/#module-replacement code block. by @m1mir in #2192
• devenv: fix missing git option regression by @sandydoo in #2194

New Contributors

• @m1mir made their first contribution in #2192

Full Changelog: v1.9.1...v1.9.2

What's Changed

• Don't run bun install with --yarn argument. by @mdarocha in #2147
• Support configurations: nixos/home-manager/nix-darwin by @domenkozar in #2092
• tasks: fix broken restarts for task processes in process-compose by @sandydoo in #2164
• starship: add inline configuration option by @Yethal in #2166
• feat(#1978): implement dark mode for docs site by @euphemism in #2148
• init: add shellcheck directive to default .envrc by @sandydoo in #2146
• feat: add MCP server support to Claude Code integration by @domenkozar in #2161
• scripts: allow setting a path for exec, fixes #17 by @domenkozar in #2168
• doc: Add defaultText for shells..configurations..system by @roberth in #2171
• process-compose: check the socket for liveness before attaching by @sandydoo in #2162
• tasks: use cached build and speed up fallback build by @sandydoo in #2173
• profiles: prevent profiles from overwriting mergeable types like packages by @sandydoo in #2174
• process-compose: remove unreleased --task-file option by @sandydoo in #2181
• ci: refactor the workflows to unblock faster runners by @sandydoo in #2182
• Add documentation on how to enable compilation of binary dependencies. by @dwt in #1625
• Add Helm language support by @Mshnwq in #2167
• flakes: fix infinite recursion when using alternative process managers by @sandydoo in #2183
• docs: Update link to Profiles guide in blog post by @Adda0 in #2184
• docs: Fix GitHub path for nix-index-database in shell session by @Adda0 in #2185
• flake-compat: wire up and expose tasks in the devenv flake wrapper by @sandydoo in #2189
• tasks: support running in an elevated shell by @sandydoo in #2175
• tasks: add property tests by @sandydoo in #2021
• devenv: fix broken spinners in devenv test and other commands by @sandydoo in #2190

New Contributors

• @Yethal made their first contribution in #2166
• @dwt made their first contribution in #1625
• @Mshnwq made their first contribution in #2167
• @Adda0 made their first contribution in #2184

Full Changelog: v1.9...v1.9.1

What's Changed

• mysql: add ensureUsers.*.host option by @mrene in #2046
• tasks: fix task process shutdown by @sandydoo in #2045
• ci: auto-assign-revieweres by @domenkozar in #2047
• stack: instruct it to not use nix as we provide ghc from devenv by @domenkozar in #2039
• fix: revert wrong UV_PYTHON env. variable by @gabyx in #2024
• tasks: fix high cpu usage when running certain processes by @sandydoo in #2053
• eval-cache: bust eval-cache when inputs to .devenv.flake.nix change by @sandydoo in #2051
• docs: fix installing in home-manager by @Curious-r in #2054
• feat(postgres): create database's user before running initialSQL by @thesoulless in #2058
• docs: add rust guide by @sandydoo in #2064
• devenv: deprecate feature detection output flags by @sandydoo in #2066
• bump secretspec, bump deps, fix cache-core version by @domenkozar in #2062
• devenv: configure Nix to use the Cachix auth token by @sandydoo in #2070
• rust: drop -iframework flag on darwin by @sandydoo in #2073
• Remove --frozen and --no-install-workspace from default uv.sync arguments by @extrange in #2038
• tasks: support globbing by @domenkozar in #2076
• fix(python): make uv discover the correct python by @gabyx in #2080
• devenv: fix building containers by @sandydoo in #2083
• scripts: support runtime packages by @domenkozar in #2082
• devenv: implement permittedUnfreePackages by @sandydoo in #2086
• dynamodb: fix dynamodb health check by @sandydoo in #2087
• devenv: improve how the dotfile path is used in .devenv.flake.nix by @sandydoo in #2094
• nix: fix several regressions by @sandydoo in #2093
• direnv: pass DEVENV_CMDLINE to the shell by @sandydoo in #2100
• Fix rubyVersionFile example by @teoljungberg in #2102
• dynamodb: add sharedDb option by @gregg-platogo in #2097
• docs: added pycharm and python integration documentation by @KevinEdry in #2052
• flakes: reload shell on up/test and remove the need for separate packages by @sandydoo in #2067
• tasks: add json extension and a prefix to the task output file by @sandydoo in #2111
• name: propagate into shell by @domenkozar in #2113
• tests: always override devenv to use local modules by @domenkozar in #2114
• Rust: import functionality by @domenkozar in #1946
• Remove PHP IDE integration section from documentation by @shyim in #2125
• languages.scala: add note about how to change JDK by @earldouglas in #2131
• scripts: fix the packages option by @sandydoo in #2133
• fix yaml syntax by @thomaschrstnsn in #2134
• devenv: update initial devenv.nix by @sandydoo in #2143
• feat(python): add uv sync packages and allPackages options by @domenkozar in #2145
• go: support overriding more pinned go module versions by @sandydoo in #2142
• devenv: support containers on macOS by @sandydoo in #2085
• chore: Add flake-parts input to enable overwrites by users by @friedow in #2153
• process-compose: fix overriding per-process options by @sandydoo in #2158

New Contributors

• @mrene made their first contribution in #2046
• @Curious-r made their first contribution in #2054
• @extrange made their first contribution in #2038
• @teoljungberg made their first contribution in #2102
• @gregg-platogo made their first contribution in #2097
• @KevinEdry made their first contribution in #2052
• @earldouglas made their first contribution in #2131
• @thomaschrstnsn made their first contribution in #2134
• @friedow made their first contribution in #2153

Full Changelog: v1.8.1...v1.9

This release addresses a number of Nix performance and usability regressions.

What's Changed

• tasks: fix task process shutdown by @sandydoo in #2045
• ci: auto-assign-revieweres by @domenkozar in #2047
• stack: instruct it to not use nix as we provide ghc from devenv by @domenkozar in #2039
• fix: revert wrong UV_PYTHON env. variable by @gabyx in #2024
• tasks: fix high cpu usage when running certain processes by @sandydoo in #2053
• eval-cache: bust eval-cache when inputs to .devenv.flake.nix change by @sandydoo in #2051
• docs: fix installing in home-manager by @Curious-r in #2054
• feat(postgres): create database's user before running initialSQL by @thesoulless in #2058
• docs: add rust guide by @sandydoo in #2064
• devenv: deprecate feature detection output flags by @sandydoo in #2066
• bump secretspec, bump deps, fix cache-core version by @domenkozar in #2062
• devenv: configure Nix to use the Cachix auth token by @sandydoo in #2070
• rust: drop -iframework flag on darwin by @sandydoo in #2073
• Remove --frozen and --no-install-workspace from default uv.sync arguments by @extrange in #2038
• fix(python): make uv discover the correct python by @gabyx in #2080
• devenv: fix building containers by @sandydoo in #2083
• dynamodb: fix dynamodb health check by @sandydoo in #2087
• devenv: improve how the dotfile path is used in .devenv.flake.nix by @sandydoo in #2094
• nix: fix several regressions by @sandydoo in #2093
• direnv: pass DEVENV_CMDLINE to the shell by @sandydoo in #2100
• Fix rubyVersionFile example by @teoljungberg in #2102
• docs: added pycharm and python integration documentation by @KevinEdry in #2052
• tasks: add json extension and a prefix to the task output file by @sandydoo in #2111

New Contributors

• @Curious-r made their first contribution in #2054
• @extrange made their first contribution in #2038
• @teoljungberg made their first contribution in #2102
• @KevinEdry made their first contribution in #2052

Full Changelog: v1.8.1...v1.8.2

What's Changed

• Fix docker image by @mykiwi in #2028
• Claude code integration by @domenkozar in #2031
• Processes are now tasks by @domenkozar in #2035
• devenv: fix issues running containers with devenv container run by @sandydoo in #2034
• Fix clangd error: compile_commands.json not found when enabling languages.c and languages.cplusplus by @Emtyffx in #2029
• devenv: fix legacy container flags test by @sandydoo in #2041

New Contributors

• @mykiwi made their first contribution in #2028
• @Emtyffx made their first contribution in #2029

Full Changelog: v1.8...v1.8.1

What's Changed

• tasks: source env for when we're running outside of devenv shell by @domenkozar in #1975
• feat: add all-groups for Python dependency by @bigluck in #1976
• task_cache: attempt to fix intermittent test failure by @sandydoo in #1985
• devenv: support pkg as a type for --option by @sandydoo in #1988
• devenv: async-ify the core state by @sandydoo in #1970
• devenv: use lib.mkForce for --option overrides by @sandydoo in #1989
• rust: make the mold linker opt-in by @sandydoo in #1984
• devenv: protect internal Nix builds from untimely GC by @sandydoo in #1993
• tests: test flake-related edge-cases with git repos by @sandydoo in #1995
• devenv: add progress spinners for steps by @sandydoo in #1969
• fix: correctly set UV_PYTHON to the wrapped python interpreter by @mauricege in #1999
• nix: fix several regressions related to git introduced in v1.7 by @sandydoo in #1992
• devenv: fix execing into a shell with devenv shell by @sandydoo in #2007
• examples: fix tzdir issues with clickhouse by @sandydoo in #2008
• rust: fix toolchain creation with rust-overlay by @sandydoo in #2005
• rust: expose toolchainPackage and use it correctly override git hooks by @sandydoo in #2011
• tasks: allow running multi-level sub-tasks by @sandydoo in #2018
• rust: allow clippy git-hook to access internet by default by @sandydoo in #2020
• nix: fix a regression where path inputs were locked by @sandydoo in #2009
• Integrate secretspec.dev by @domenkozar in #2016

New Contributors

• @bigluck made their first contribution in #1976
• @mauricege made their first contribution in #1999

Full Changelog: v1.7...v1.8