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Bump libzim from 3.9.0 to 4.0.0 in /backend in the python group - #33
Build wheels against the stable ABI (abi3) so a single wheel per platform covers all supported CPython versions (#264)
Add libzim.illustration module with the IllustrationInfo value object, and width/height/scale-aware illustration APIs: Creator.add_illustration()/add_illustration_info(), Archive.get_illustration_item()/get_illustration_item_info(), Archive.get_illustrations_info() (#232)
Support multi-archive searching via Searcher.add_archive() (#230)
Add SearchResult object with archive, path, title, and snippet (#226)
Changed
Breaking: SearchResultSet now yields SearchResult objects instead of entry path strings (#226)
Breaking: Creator.add_metadata no longer auto-converts a Date metadata value passed as datetime.date/datetime.datetime; pass pre-formatted str/bytes instead (#188)
Breaking: Archive._get_entry_by_id() removed in favor of Archive.get_entry_by_id() (#225)
Fixed
Fix documentation build broken by mkdocstrings-python import/load_external_modules config changes and a stale CI badge URL (#279)
get_illustration_sizes() deprecation warning now points to the existing get_illustrations_info() method (#272)
Creator.add_metadata type stub no longer advertises datetime values (#285)
libzim.suggestion now exports SuggestionSearch and SuggestionResultSet at runtime, as declared in type stubs (#286)
Fix type stubs drifting from the compiled module: set_cluster_cache_max_size parameter name, IllustrationInfoextra_attributes default, enum members, Creator.config_*() return type (#286)
Submodules are no longer also registered in sys.modules under their last member name (e.g. sys.modules["Searcher"]) (#286)
3.13.1
Changed
Upgrade to libzim 9.8.2-1 and upgrade other Python dependencies (#269)
3.13.0
Changed
Upgrade to libzim 9.8.2 and upgrade other Python dependencies, especially Cython 3.3.0 (#265)
Build wheels against the stable ABI (abi3) so a single wheel per platform covers all supported CPython versions (#264)
Add libzim.illustration module with the IllustrationInfo value object, and width/height/scale-aware illustration APIs: Creator.add_illustration()/add_illustration_info(), Archive.get_illustration_item()/get_illustration_item_info(), Archive.get_illustrations_info() (#232)
Support multi-archive searching via Searcher.add_archive() (#230)
Add SearchResult object with archive, path, title, and snippet (#226)
Changed
Breaking: SearchResultSet now yields SearchResult objects instead of entry path strings (#226)
Breaking: Creator.add_metadata no longer auto-converts a Date metadata value passed as datetime.date/datetime.datetime; pass pre-formatted str/bytes instead (#188)
Breaking: Archive._get_entry_by_id() removed in favor of Archive.get_entry_by_id() (#225)
Fixed
Fix documentation build broken by mkdocstrings-python import/load_external_modules config changes and a stale CI badge URL (#279)
get_illustration_sizes() deprecation warning now points to the existing get_illustrations_info() method (#272)
Creator.add_metadata type stub no longer advertises datetime values (#285)
libzim.suggestion now exports SuggestionSearch and SuggestionResultSet at runtime, as declared in type stubs (#286)
Fix type stubs drifting from the compiled module: set_cluster_cache_max_size parameter name, IllustrationInfoextra_attributes default, enum members, Creator.config_*() return type (#286)
Submodules are no longer also registered in sys.modules under their last member name (e.g. sys.modules["Searcher"]) (#286)
[3.13.1] - 2026-10-05
Changed
Upgrade to libzim 9.8.2-1 and upgrade other Python dependencies (#269)
[3.13.0] - 2026-09-07
Changed
Upgrade to libzim 9.8.2 and upgrade other Python dependencies, especially Cython 3.3.0 (#265)
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Summary by CodeRabbit
Bug Fixes
ZIM exports now pass illustration data in the format expected by the updated export tooling, helping ensure the configured illustration is included.
Maintenance
Updated the ZIM export tooling to a newer version.
Documentation
Updated the documented ZIM export version to match.
Reviewing files that changed from the base of the PR and between d23481d and 8f0ded6.
Files ignored due to path filters: 1
backend/uv.lock is excluded by !**/*.lock, !backend/uv.lock
Files selected for processing: 1
backend/tests/test_zim.py
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Walkthrough
The backend upgrades libzim from 3.9.0 to 4.0.0 and changes the illustration call argument order. The test checks the content of illustration item 48. The architecture decision and status page now specify version 4.0.0.
The backend pins libzim 4.0.0. write_zim passes illustration bytes before the size argument. The test checks that illustration item 48 matches the configured illustration file. The architecture decision and status page specify libzim 4.0.0.
The backend runtime, dependency pin, illustration call, tests, and documentation are aligned; no merge-blocking issue remains.
Architecture risk: Low · up to d2348
The change affects 2 systems.
Changed systems:backend, docs
Architecture concerns
No architecture-level concerns identified.
Review details
Systems and components
observed — backend (service) was modified; 2 changed files map to changed impact.
observed — docs (service) was modified; 2 changed files map to changed impact.
Before / after behavior
observed — Modified behavior in backend/pyproject.toml: The pinned libzim version changes from 3.9.0 to 4.0.0.
observed — Modified behavior in backend/app/zim.py: write_zim changes the add_illustration argument order from size then image bytes to image bytes then size.
observed — Modified behavior in docs/architecture.md: The ZIM decision updates the specified libzim version from 3.9.0 to 4.0.0; the remaining decision text is unchanged.
observed — Modified behavior in docs/status.md: The ZIM export status now documents libzim 4.0.0 instead of 3.9.0.
Pre-merge checks: 5
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Explanation
Description Check
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Title check
The title clearly identifies the main change: upgrading libzim from 3.9.0 to 4.0.0 in the backend. The dependency-management wording is specific and related to the changeset.
Docstring Coverage
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
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Full details: Docstring Coverage
Explanation
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 1 functions across 2 files.
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Inline comments:
Review comments at @backend/pyproject.toml:
- Line 13: Update the add_illustration call in write_zim to pass the
illustration bytes as content and 48 as width, matching the libzim 4.0.0
argument order. Preserve the existing illustration data and archive-writing
flow.
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dependenciesPull requests that update a dependency filepython:uvPull requests that update python:uv code
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Bumps the python group in /backend with 1 update: libzim.
Updates
libzimfrom 3.9.0 to 4.0.0Release notes
Sourced from libzim's releases.
... (truncated)
Changelog
Sourced from libzim's changelog.
... (truncated)
Commits
6fe35f3Release 4.0.0f3ed793Merge pull request #286 from openzim/stubtest22e17c4Check type stubs against compiled module in QA4b651cdFix drifts between type stubs and compiled module341e06dExport SuggestionSearch and SuggestionResultSet, fix sys.modules pollution75aefabMerge pull request #285 from openzim/upgrade-dependencies9dd561bUpgrade dependenciesfe0f80cFix Creator.add_metadata stub: content no longer accepts dates4a5f431Merge pull request #276 from Sriram-Nambiar/multi-archive-search-and-snippets8443a4fSupport multi-archive search and SearchResult with snippetsDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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@dependabot rebasewill rebase this PR@dependabot recreatewill recreate this PR, overwriting any edits that have been made to it@dependabot show <dependency name> ignore conditionswill show all of the ignore conditions of the specified dependency@dependabot ignore <dependency name> major versionwill close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself)@dependabot ignore <dependency name> minor versionwill close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself)@dependabot ignore <dependency name>will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself)@dependabot unignore <dependency name>will remove all of the ignore conditions of the specified dependency@dependabot unignore <dependency name> <ignore condition>will remove the ignore condition of the specified dependency and ignore conditionsSummary by CodeRabbit