fix(backend): flag regex prerelease versions by jdx · Pull Request #9500 · jdx/mise

jdx · 2026-05-01T00:17:15Z

Summary

add an opt-in mark_prereleases_from_version_pattern backend hook for version sources that do not already carry prerelease metadata
enable regex stamping only for the metadata-free backends that return plain version lists through mise
keep metadata-aware paths authoritative; Java continues to set prerelease from its own local regex path because it bypasses the shared backend cache
update ls-remote --prerelease help/generated docs to describe metadata and opt-in regex detection

Why

mise-versions should be able to consume prerelease metadata from mise, but mise should not overwrite or second-guess backends that already provide an explicit prerelease flag. This keeps #144 as the immediate hosted-data fix while making mise send the flag for legacy/plain-list backends where regex detection is still the only available signal.

PR feedback addressed

clarified stale --prerelease help text and regenerated usage/manpage docs
skipped regex matching in mark_prerelease when upstream already flagged a version as prerelease
removed conda's dead mark_prereleases_from_version_pattern override while keeping its direct stamping in the custom cache-bypass path

Validation

cargo fmt --all --check
cargo test -q test_mark_prerelease_flags_regex_matches
cargo test -q test_filter_cached_prereleases
cargo build -q
mise run render:usage
mise run render:mangen
mise run render:fig (reverted unrelated generated collapse; kept the targeted completion text update)
commit hook: hk lint stack, including cargo check --all-features
MISE_USE_VERSIONS_HOST=0 target/debug/mise ls-remote --prerelease --json gradle | jq -c 'map(select(.version == "9.6.0-M1" or .version == "9.5.0"))'
MISE_USE_VERSIONS_HOST=0 target/debug/mise ls-remote --json gradle | jq -c 'map(select(.version | test("-M|-RC"))) | length'
MISE_USE_VERSIONS_HOST=0 target/debug/mise ls-remote --prerelease --json java | jq 'map(select(has("prerelease"))) | length'

This PR description was generated by an AI coding assistant.

Note

Medium Risk
Changes how remote version lists are cached/filtered for many backends by stamping VersionInfo.prerelease from a regex, which could affect latest resolution and ls-remote output if versions are misclassified.

Overview
Extends pre-release handling to backends that don’t provide upstream prerelease metadata by adding a Backend::mark_prereleases_from_version_pattern hook and a shared mark_prerelease helper that stamps regex-shaped versions before they enter the remote-versions cache.

Enables this opt-in for several metadata-free backends (e.g. asdf, cargo, npm, pipx, http, s3, ubi, vfox, etc.) and updates conda’s cache-bypass path to apply the same stamping+filtering logic. java now explicitly sets prerelease when building its version list.

Updates ls-remote --prerelease help text and regenerates usage/manpage/completion docs to reflect that prereleases can come from upstream metadata or regex-based detection.

^{Reviewed by Cursor Bugbot for commit 6e8d626. Bugbot is set up for automated code reviews on this repo. Configure here.}

greptile-apps · 2026-05-01T00:20:20Z

Greptile Summary

This PR adds an opt-in mark_prereleases_from_version_pattern() backend hook and a shared mark_prerelease() helper that stamps VersionInfo.prerelease via the existing VERSION_REGEX before versions are cached, enabling --prerelease filtering for metadata-free backends (asdf, cargo, npm, pipx, gem, go, http/s3, ubi, vfox, dotnet, spm). Conda and Java use equivalent direct-stamping in their cache-bypassing paths. The versions-host early-return path intentionally skips stamping — the validation commands in the description all use MISE_USE_VERSIONS_HOST=0, so the default user flow (versions host enabled) is unchanged pending a versions-host-side update.

Confidence Score: 5/5

Safe to merge; logic is gated per-backend, the guard in mark_prerelease prevents double-stamping, and the versions-host limitation is intentional and pre-existing.

No P0 or P1 issues found. The versions-host bypass (flagged in a previous review comment) is a documented, intentional design choice — not a regression introduced by this PR. New unit tests cover the stamping and filtering behaviour. The mark_prerelease guard correctly preserves upstream-authoritative flags.

No files require special attention.

Important Files Changed

Filename	Overview
src/backend/mod.rs	Adds mark_prereleases_from_version_pattern() trait hook (default false), mark_prerelease() helper, and applies it inside the _list_remote_versions fallback path; versions-host early-return path is intentionally left un-stamped per the PR design.
src/backend/conda.rs	Cache-bypassing list_remote_versions_with_info now unconditionally applies mark_prerelease + filter_cached_prereleases, correctly handling conda's non-shared-cache path.
src/plugins/core/java.rs	Explicitly stamps prerelease using Java's local VERSION_REGEX inside _list_remote_versions, which is intentional since Java bypasses the shared cache and uses its own slightly-different regex.
src/backend/asdf.rs	Blanket opt-in for all ASDF plugins; individual plugins with non-SemVer versioning may get false-positive prerelease stamps, but this is an accepted trade-off of regex-based detection.
src/versions_host.rs	Comment-only update to VersionEntry.prerelease doc; no logic changes.
src/cli/ls_remote.rs	Doc string updates for --prerelease flag to reflect broader backend coverage; no logic changes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[list_remote_versions_with_info] --> B{use_versions_host?}
    B -- yes --> C[versions_host::list_versions]
    C -- Some(versions) --> D[early return\nno mark_prerelease applied]
    C -- None/Err --> E[_list_remote_versions]
    B -- no --> E
    E --> F{mark_prereleases_from_version_pattern?}
    F -- true --> G[mark_prerelease\nVERSION_REGEX stamp]
    F -- false --> H[pass through unchanged]
    G --> I[filter valid VersionType versions]
    H --> I
    I --> J[cache]
    J --> K[filter_cached_prereleases\nwant_prereleases?]
    K -- false --> L[drop prerelease=true entries]
    K -- true --> M[return all versions]

_{Reviews (5): Last reviewed commit: "fix(conda): apply prerelease filter in l..." | Re-trigger Greptile}

gemini-code-assist

Code Review

This pull request introduces a mechanism to automatically flag pre-release versions using a regex pattern before they are cached, ensuring consistent filtering across different backends. The changes include adding a mark_prerelease helper function and integrating it into the version listing pipeline. Feedback suggests extending this logic to the versions_host path for consistency, improving Java-specific pre-release detection for "ea" versions, and optimizing the mark_prerelease helper to skip regex checks for versions already flagged by upstream metadata.

gemini-code-assist · 2026-05-01T00:23:35Z

                    ._list_remote_versions(config)
                    .await?
                    .into_iter()
+                    .map(mark_prerelease)


While adding mark_prerelease here correctly flags versions fetched directly from the backend, the same logic appears to be missing from the versions_host path earlier in this function (around line 823 in the full file).

If versions_host::list_versions returns versions that haven't been stamped by the host yet, they will bypass this heuristic and enter the cache with prerelease: false, causing them to show up even when the user hasn't opted into pre-releases. Consider applying mark_prerelease to the host results as well to ensure consistent behavior.

gemini-code-assist · 2026-05-01T00:23:35Z

            .map(|(v, m)| VersionInfo {
                version: v.clone(),
                created_at: m.created_at.clone(),
+                prerelease: VERSION_REGEX.is_match(&v),


The local VERSION_REGEX in this file does not include the -ea pattern, which means Java Early Access versions (e.g., 21-ea+23) will not be correctly flagged as pre-releases.

Since the JavaPlugin already distinguishes between GA and EA release types, it's safer and more accurate to flag all versions as pre-releases when release_type is "ea".

Suggested change

prerelease: VERSION_REGEX.is_match(&v),

prerelease: release_type == "ea" || VERSION_REGEX.is_match(&v),

gemini-code-assist · 2026-05-01T00:23:35Z

+pub(crate) fn mark_prerelease(mut version: VersionInfo) -> VersionInfo {
+    if VERSION_REGEX.is_match(&version.version) {
+        version.prerelease = true;
+    }
+    version
+}


This helper can be slightly optimized to avoid unnecessary regex matching for versions that have already been flagged as pre-releases by the upstream backend (e.g., via GitHub API metadata).

Suggested change

pub(crate) fn mark_prerelease(mut version: VersionInfo) -> VersionInfo {

if VERSION_REGEX.is_match(&version.version) {

version.prerelease = true;

}

version

}

pub(crate) fn mark_prerelease(mut version: VersionInfo) -> VersionInfo {

if !version.prerelease && VERSION_REGEX.is_match(&version.version) {

version.prerelease = true;

}

version

}

github-actions · 2026-05-01T00:55:57Z

Hyperfine Performance

`mise x -- echo`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`mise-2026.4.28 x -- echo`	23.9 ± 0.4	23.2	25.5	1.00
`mise x -- echo`	24.9 ± 3.9	23.8	110.8	1.04 ± 0.16

`mise env`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`mise-2026.4.28 env`	23.7 ± 0.6	22.7	32.1	1.00
`mise env`	24.1 ± 0.5	23.2	25.8	1.02 ± 0.03

`mise hook-env`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`mise-2026.4.28 hook-env`	24.1 ± 0.4	23.4	27.6	1.00
`mise hook-env`	24.4 ± 0.3	23.8	26.0	1.01 ± 0.02

`mise ls`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`mise-2026.4.28 ls`	24.6 ± 0.3	24.0	25.9	1.00
`mise ls`	25.1 ± 0.6	24.5	35.2	1.02 ± 0.03

`xtasks/test/perf`

Command	mise-2026.4.28	mise	Variance
install (cached)	161ms	164ms	-1%
ls (cached)	82ms	84ms	-2%
bin-paths (cached)	83ms	84ms	-1%
task-ls (cached)	784ms	783ms	+0%

cursor

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit b75b618. Configure here.}

Conda's `list_remote_versions_with_info` override stamps prerelease via `mark_prerelease` but bypassed the read-time `filter_cached_prereleases` that the default trait path applies. Versions matching the prerelease regex were returned even when the user hadn't opted in via `--prerelease` or `MISE_PRERELEASES=1`. Resolve tool opts and filter after stamping so conda matches the default behavior. Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

The `([abc])[0-9]+` alternative in the shared `VERSION_REGEX` was unanchored, so it false-positived on any `a`/`b`/`c` followed by a digit anywhere in a version string — including the random hex hash inside Go pseudo-versions (e.g. `c1` inside `f149714c1d54`). After #9500 enabled `mark_prereleases_from_version_pattern: true` for the `go` backend, this caused `mise install go:.../@latest` to filter out the only available version for paths whose latest is a pseudo-version, e.g. `go:github.com/go-kratos/kratos/cmd/kratos/v2`. The rule itself is PEP 440-specific (Python's `aN`/`bN`/`cN` shorthand) and shouldn't have been in the general regex at all. Move it into a new `PEP440_PRERELEASE_REGEX` consulted only by the `pipx` backend — non-Python backends like `go`, `npm`, `cargo`, GitHub releases, etc. would otherwise false-positive on hex hashes / short SHAs and other incidental `[abc]\d` substrings. The new regex is also anchored — `[abc][0-9]+` must be at end-of-string or followed by a non-`[a-z0-9]` char — so even within pipx it won't match hash-shaped identifiers. `pipx` applies the rule itself in two places: stamping prerelease versions in `_list_remote_versions` (so the cache reflects it), and overriding `fuzzy_match_filter` to drop them from match results when the user hasn't opted in to prereleases. Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

The `([abc])[0-9]+` alternative in the shared `VERSION_REGEX` was unanchored, so it false-positived on any `a`/`b`/`c` followed by a digit anywhere in a version string — including the random hex hash inside Go pseudo-versions (e.g. `c1` inside `f149714c1d54`). After #9500 enabled `mark_prereleases_from_version_pattern: true` for the `go` backend, this caused `mise install go:.../@latest` to filter out the only available version for paths whose latest is a pseudo-version, e.g. `go:github.com/go-kratos/kratos/cmd/kratos/v2`. The rule itself is PEP 440-specific (Python's separator-less alpha/beta/rc shorthand) and shouldn't have been in the general regex. Move it into a new `PEP440_PRERELEASE_REGEX` consulted only by the Python-flavored backends — `pipx` and the `python` core plugin. Other backends would otherwise false-positive on hex hashes / short SHAs. The new regex is grounded in the canonical PEP 440 grammar, `[N!]N(.N)*[{a|b|rc}N][.postN][.devN]`: the prerelease segment must follow the release segment, so the regex requires a leading digit. `c` is included as PEP 440's recognized alternate spelling for `rc`. A trailing `(?:$|[^a-z0-9])` boundary keeps it from matching inside hex identifiers even when those start with a digit. Both Python-flavored backends share the logic via a new `fuzzy_match_versions_pep440` helper. `pipx` additionally stamps the flag on its `VersionInfo` cache entries so `prerelease=true` reflects upstream metadata as well as fuzzy-match filtering. Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

…9558) ## Summary Two regressions visible in the release PR (#9485): - `mise install go:.../@latest` returns "no versions found" when the latest is a Go pseudo-version (e.g. `go:github.com/go-kratos/kratos/cmd/kratos/v2`) — the e2e-0 / `backend/test_go_install_slow` failure. - (After narrowing the rule too aggressively in earlier revs of this PR: `mise latest python` returned `3.15.0a8` instead of a stable. Fixed below.) ## Cause The `([abc])[0-9]+` alternative in the shared `VERSION_REGEX` was unanchored, so it false-positived on any `a`/`b`/`c` followed by a digit anywhere in a string — including the random hex hash inside Go pseudo-versions (e.g. `c1` inside `f149714c1d54`). #9500 enabled `mark_prereleases_from_version_pattern: true` for the `go` backend on May 1, which is what made it user-visible — the regex was already over-permissive but no Go-flavored input had been feeding it before. ## Fix The rule is PEP 440-specific (Python's separator-less alpha/beta/rc shorthand). Move it out of the general regex into `PEP440_PRERELEASE_REGEX` and consult it only from Python-flavored backends. - `VERSION_REGEX` (in `src/plugins/mod.rs`): drop the `([abc])[0-9]+` alternative. - `PEP440_PRERELEASE_REGEX` (new): `(?i)[0-9](?:a|b|c|rc)[0-9]+(?:\$|[^a-z0-9])` — grounded in PEP 440's canonical grammar `[N!]N(.N)*[{a|b|rc}N][.postN][.devN]`. The leading digit anchors the prerelease segment to follow the release segment (so it can't trigger inside arbitrary identifiers); `c` is included as PEP 440's recognized alternate spelling for `rc`; the trailing boundary stops it from matching inside hex hashes even when those start with a digit. - `pipx`: - Stamps PEP 440 prereleases on `VersionInfo` in `_list_remote_versions` so the cache reflects it. - Overrides `fuzzy_match_filter` to drop them from match results. - `python` core plugin: same `fuzzy_match_filter` override (`python-build` returns `3.15.0a8`-style alphas). - Both share a new `fuzzy_match_versions_pep440` helper in `src/backend/mod.rs` so the override is one line each. ## Test plan - [x] `cargo test test_pep440_prerelease_regex` (new) — Python suffixes match, Go pseudo-versions and bare-`b` identifiers don't, `.post` doesn't. - [x] `cargo test test_version_regex_filters_prerelease` — confirms PEP 440 cases now negative on the general regex. - [x] `cargo test test_mark_prerelease_flags_regex_matches` — added a Go pseudo-version case and a PEP 440 case (both should *not* be flagged by the general path). - [x] `cargo test test_fuzzy_match_versions_*`, `test_filter_cached_prereleases_*`, `pipx::tests::*`. - [x] Local repro: `mise ls-remote 'go:github.com/go-kratos/kratos/cmd/kratos/v2'` returns `2.0.0-20260404020628-f149714c1d54`. - [x] Local repro: `mise latest python` returns `3.14.4` (was `3.15.0a8` after the earlier rev of this PR). - [ ] Wait on CI for `e2e-0 / test_go_install_slow` and `e2e-6 / test_latest`. 🤖 Generated with [Claude Code](https://claude.com/claude-code)  --- > [!NOTE] > **Medium Risk** > Adjusts prerelease detection and fuzzy version resolution logic, which can change what versions are considered installable/latest across multiple backends; mistakes could hide valid versions or surface prereleases unexpectedly. > > **Overview** > Fixes prerelease filtering regressions by removing the unanchored `([abc])[0-9]+` clause from the shared `VERSION_REGEX` (which was incorrectly flagging strings like Go pseudo-versions) and introducing a new Python-scoped `PEP440_PRERELEASE_REGEX`. > > Python-flavored backends (`pipx` and the core `python` plugin) now apply PEP 440 prerelease handling explicitly: `pipx` stamps PEP 440 alphas/betas/rcs onto cached `VersionInfo.prerelease`, and both backends override fuzzy matching via a new shared helper `fuzzy_match_versions_pep440` so `latest`/prefix queries skip `3.15.0a8`-style versions unless explicitly requested. > > Adds focused tests to ensure Go pseudo-versions are not filtered by the general regex and that PEP 440 prerelease detection works only where intended. > > <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit 287f01d. Bugbot is set up for automated code reviews on this repo. Configure [here](https://www.cursor.com/dashboard/bugbot).</sup>  Co-authored-by: Claude Opus 4.7 (1M context) <[email protected]>

@jdx

### 🚀 Features - **(conda)** graduate conda backend out of experimental by @jdx in [#9544](#9544) - **(deps)** Add dart and flutter providers by @tjarvstrand in [#9505](#9505) - **(registry)** add neo4j by @mnm364 in [#9525](#9525) - **(registry)** add rustfs by @mnm364 in [#9530](#9530) - **(task)** support exclusion patterns in task sources by @jlarmstrongiv in [#9496](#9496) - **(vfox)** add stat function to lua file module by @esteve in [#9497](#9497) ### 🐛 Bug Fixes - **(backend)** flag regex prerelease versions by @jdx in [#9500](#9500) - **(backend)** mark -nightly/-canary/-experimental as prereleases by @jdx in [#9523](#9523) - **(backend)** suppress no-versions warning for unresolved-latest backends by @jdx in [#9548](#9548) - **(backend)** include dotnet prereleases from package flags by @jdx in [#9551](#9551) - **(backend)** scope PEP 440 prerelease detection to Python backends by @jdx in [#9558](#9558) - **(cargo)** Apply install_env during cargo install by @c22 in [#9502](#9502) - **(copr)** drop epel-9 chroots since rust >= 1.91 is unavailable by @jdx in [#9484](#9484) - **(github)** skip attestations on non-default api_url by @jdx in [#9486](#9486) - **(github)** retry ip allow list errors without auth by @risu729 in [#9506](#9506) - **(http)** update versions host tracking endpoint by @jdx in [#9527](#9527) - **(install)** don't warn for configured tools when version is passed via CLI by @jdx in [#9522](#9522) - **(install)** refresh latest before installing missing tools by @jdx in [#9545](#9545) - **(install)** don't cache nonexistent install paths by @jdx in [#9553](#9553) - **(lockfile)** don't propagate ad-hoc CLI overrides into the project lockfile by @jdx in [#9562](#9562) - **(plugin)** detect plugin types after cloning by @risu729 in [#9540](#9540) - **(release)** pass --no-git-checks to aube publish by @jdx in [#9483](#9483) - **(task)** convert PATH to MSYS Unix form when spawning POSIX shells on Windows by @JamBalaya56562 in [#9547](#9547) ### 📚 Documentation - **(contributing)** require popularity check for registry PRs by @jdx in [7bbeebe](7bbeebe) - **(watch)** update pitchfork domain to en.dev by @risu729 in [#9536](#9536) - document ghtkn GitHub token setup by @jdx in [#9546](#9546) - clarify registry backend acceptance policy by @jdx in [#9543](#9543) - Change exec command to use bash for variable echo by @kuboon in [#9567](#9567) ### 🧪 Testing - **(e2e)** run test-tool targets in parallel by @jdx in [#9564](#9564) - **(e2e)** run tests in parallel by @jdx in [#9563](#9563) - **(e2e)** bind-mount /tmp on disk and surface failed tests in CI summary by @jdx in [#9570](#9570) - **(tasks)** migrate test_task_help atask to usage field by @jdx in [#9549](#9549) ### 📦️ Dependency Updates - update fedora:45 docker digest to 8b838b3 by @renovate[bot] in [#9507](#9507) - update ghcr.io/jdx/mise:deb docker digest to f02194c by @renovate[bot] in [#9509](#9509) - update taiki-e/install-action digest to 7769b73 by @renovate[bot] in [#9512](#9512) - update ghcr.io/jdx/mise:alpine docker digest to 581f8a8 by @renovate[bot] in [#9508](#9508) - update rust crate ctor to v0.10.1 by @renovate[bot] in [#9515](#9515) - update ghcr.io/jdx/mise:rpm docker digest to a5c9655 by @renovate[bot] in [#9510](#9510) - update rust docker digest to a9cfb75 by @renovate[bot] in [#9511](#9511) - update rust crate age to v0.11.3 by @renovate[bot] in [#9514](#9514) - update rust crate jiff to v0.2.24 by @renovate[bot] in [#9516](#9516) - update dependency vitepress-plugin-tabs to ^0.9.0 by @renovate[bot] in [#9518](#9518) - update autofix-ci/action action to v1.3.4 by @renovate[bot] in [#9513](#9513) - update rust crate usage-lib to v3.2.1 by @renovate[bot] in [#9517](#9517) - update apple-actions/import-codesign-certs action to v7 by @renovate[bot] in [#9519](#9519) - update taiki-e/install-action digest to 51cd0b8 by @renovate[bot] in [#9531](#9531) - exclude taiki-e/install-action from renovate by @jdx in [#9532](#9532) - update rust crate blake3 to v1.8.5 by @renovate[bot] in [#9533](#9533) ### 📦 Registry - enable shellcheck on windows by @zeitlinger in [#9487](#9487) - add google-java-format by @zeitlinger in [#9488](#9488) - add expert ([aqua:expert-lsp/expert](https://github.com/expert-lsp/expert)) by @AlternateRT in [#9498](#9498) - update entry for checkmake by @eread in [#9504](#9504) - add systemctl-tui ([aqua:rgwood/systemctl-tui](https://github.com/rgwood/systemctl-tui)) by @2xdevv in [#9521](#9521) - add codon by @3w36zj6 in [#9538](#9538) - add tool yr (backend:github:VirusTotal/yara-x) by @adam-moss in [#9542](#9542) - add tool betterleaks (backend:aqua/betterleaks/betterleaks) by @adam-moss in [#9541](#9541) - add `git-filter-repo` by @garysassano in [#9550](#9550) - add umoci ([aqua:opencontainers/umoci](https://github.com/opencontainers/umoci)) by @2xdevv in [#9555](#9555) - add aqua backend for elixir-ls by @AlternateRT in [#9557](#9557) - deny inline backend options by @risu729 in [#9565](#9565) ### Chore - **(ci)** fail registry tests without summary by @jdx in [#9559](#9559) - **(ci)** use !cancelled() instead of always() for test-ci aggregator by @jdx in [#9569](#9569) - **(ci)** use namespace runners for ci jobs by @jdx in [#9561](#9561) - **(config)** deprecate shorthands_file setting by @risu729 in [#9534](#9534) - **(docs)** remove shrill.en.dev analytics script by @jdx in [#9539](#9539) - **(release)** replace bc with awk in release-plz star formatting by @jdx in [d7f177f](d7f177f) - bump hk to 1.44.3 by @jdx in [#9493](#9493) - invert CLAUDE.md/AGENTS.md so AGENTS.md is canonical by @jdx in [#9560](#9560) - set dev profile debug to 1 by @jdx in [#9572](#9572) ### New Contributors - @kuboon made their first contribution in [#9567](#9567) - @AlternateRT made their first contribution in [#9557](#9557) - @2xdevv made their first contribution in [#9555](#9555) - @adam-moss made their first contribution in [#9541](#9541) - @jlarmstrongiv made their first contribution in [#9496](#9496) - @tjarvstrand made their first contribution in [#9505](#9505)

jdx mentioned this pull request May 1, 2026

fix: preserve prerelease metadata jdx/mise-versions#144

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fix(backend): flag regex prerelease versions

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jdx force-pushed the codex/flag-regex-prereleases branch from fca88b2 to b75b618 Compare May 1, 2026 01:37

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jdx merged commit a073b8e into main May 1, 2026
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jdx deleted the codex/flag-regex-prereleases branch May 1, 2026 11:45

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chore: release 2026.5.0 #9485

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fix(backend): scope PEP 440 prerelease detection to Python backends #9558

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mise 2026.5.0 Homebrew/homebrew-core#280712

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github-actions Bot commented May 1, 2026 •

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	prerelease: VERSION_REGEX.is_match(&v),
	prerelease: release_type == "ea" \|\| VERSION_REGEX.is_match(&v),

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jdx commented May 1, 2026 • edited by cursor Bot Loading Uh oh! There was an error while loading. Please reload this page.

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Summary

Why

PR feedback addressed

Validation

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greptile-apps Bot commented May 1, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Greptile Summary

Confidence Score: 5/5

Important Files Changed

Flowchart

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Code Review

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github-actions Bot commented May 1, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Hyperfine Performance

mise x -- echo

mise env

mise hook-env

mise ls

xtasks/test/perf

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jdx commented May 1, 2026 •

edited by cursor Bot

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greptile-apps Bot commented May 1, 2026 •

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github-actions Bot commented May 1, 2026 •

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`mise x -- echo`

`mise env`

`mise hook-env`

`mise ls`

`xtasks/test/perf`