0.3.7

What's Changed

• Bugfix/1402 by @adrian-zawadzki in #788

Full Changelog: v0.3.6...v0.3.7

v0.3.6

dbzero v0.3.6

v0.3.6 is a stability release focused on shutdown safety and interned immutable object handling.

Fixes

• Fixed a Python interpreter shutdown crash that could occur when durable Python wrapper objects were deallocated during or after Python finalization.
• Added deallocation guards across Python binding wrapper types to avoid entering dbzero/Python cleanup paths once the interpreter is finalizing.
• Fixed finalization of interned immutable objects so nested interned records correctly close their initializer state.
• Fixed nested interned immutable references stored through singleton/list workflows, including cases that use factory/classmethod construction.
• Improved regression coverage for nested durable objects, interned immutable hierarchies, and unhandled-exception shutdown behavior.

Package

• Bumped Python package version from 0.3.5 to 0.3.6.

v0.3.5

Release Notes

v0.3.5

Highlights

• Added passive tags via db0.tags(obj, passive=True).add(...).
• Passive tags reduce tagging overhead by avoiding object lifetime refs.
• Passive tags support:
  • simple tags
  • foreign/long tags
  • composite tags
  • batch tagging/removal from db0.find(...) results
• Added TagAddress as the short-tag index key type, preserving backward compatibility with serialized uint64_t keys.

Passive Tag Semantics

• Passive tags do not keep target objects durable.

• Passive-only queries are rejected; passive tags must be queried with at least one regular positive predicate, for example:

  db0.find(MyType, "passive-tag")

• Re-applying a regular tag over an existing passive tag does not convert it to regular.

• Removing passive tags uses the normal remove API:

  db0.tags(obj).remove("passive-tag")

Fixes

• Fixed enum tag collisions with passive tag bit encoding.
• Fixed long/foreign passive tags so they work correctly with add, find, remove, and stale-object filtering.
• Fixed composite passive tags across add/remove and query-target batch operations.
• Fixed generator/one-shot iterable tag assignment being consumed by composite-tag pre-scan.
• Fixed atomic iterator/threading and full-text iterator detach issues from post-v0.3.4 bugfixes.
• Fixed a MorphingBIndex iterator crash path.

Benchmarks

• Added benchmarks/tagging.py for comparing regular vs passive tagging performance, including focused pre-created-tag scenarios.

Validation

• Full Python suite: 1569 passed, 15 skipped
• C++ suite: 850 passed

Commits Since v0.3.4

• TagAddress implemented + integration
• passive tags
• composite passive tags
• long passive tags + test + fix enum tag collision
• post-v0.3.4 atomic/threading/iterator bugfixes
• version update to 0.3.5

v0.3.4

Highlights

• Added db0.read_only() context support to reject dbzero mutations while active.

• Added asyncio-aware atomic operations via db0.async_atomic().

• Added batched tag operations for query targets:

  db0.tags(db0.find("token-a", "token-b")).add("token-c")
  db0.tags(db0.find("token-a")).remove("token-a")

• Improved atomic rollback, iterator detach/reattach, and async/thread interaction safety.

• Fixed dbzero set behavior to better match Python set semantics and avoid a set-difference crash.

New APIs

• db0.read_only()
  • Context manager that rejects mutations inside the active scope.
• db0.in_read_only()
  • Returns whether execution is currently inside a read-only context.
• db0.async_atomic()
  • Async context manager for atomic operations in asyncio tasks.
• db0.tags(...)
  • Now accepts both memo objects and query objects:
    • db0.tags(obj).add("tag")
    • db0.tags(db0.find("source")).remove("source")

Improvements

• Read-only context propagation works across threads and asyncio tasks using context-aware state tracking.
• Atomic contexts become no-op inside read-only contexts, avoiding unintended mutation setup.
• Query iterators can detach and reattach after mutations/rollbacks, improving safety for leaked or long-lived iterators.
• Added ObjectIteratorPool integration to track and detach active iterators when storage changes.
• Improved mutation rejection for tags, touches, indexes, collections, memo creation, and field writes under read-only mode.
• Added benchmark coverage for read-only read overhead.

Bug Fixes

• Fixed several atomic rollback and synchronization issues, including async rollback/threading cases.
• Fixed allocator rollback behavior.
• Fixed schema builder behavior in affected atomic paths.
• Fixed range-tree iterator behavior affecting set difference.
• Fixed PySet issues:
  • subset/superset comparisons with empty sets
  • iterable acceptance for issubset
  • no-arg copy semantics for set operations
  • binary operators rejecting non-set iterables like Python
• Fixed crash/regression for Python set difference against memo-backed set fields.
• Fixed immutable memo detach handling.
• Improved protection of remote object access while in read-only mode.

Tests

• Added broad Python coverage for read-only contexts, async atomic behavior, atomic rollback, batched tagging, and set semantics.
• Added C++ unit coverage for iterator detach, iterator pooling, object rollback/deletion paths, prefix locking, and range-tree behavior.
• Full Python suite result from this workspace:
  • 1542 passed, 15 skipped using ./scripts/run_tests.sh -j 6 on the debug build.

v0.3.3

What's Changed

• Bugfix/1332 by @wskozlowski in #772
• Bugfix/1332 by @wskozlowski in #773

Full Changelog: v0.3.2...v0.3.3

v0.3.2

What's Changed

• windows compile fixes by @wskozlowski in #769
• Feature/1304 by @wskozlowski in #771
• fix(build): fixed problem with build on Windows by @adrian-zawadzki in #770

Full Changelog: v0.3.1...v0.3.2

0.3.1

What's Changed

• Feature/1264 by @wskozlowski in #759
• feature(allocator): added findAllocation by @adrian-zawadzki in #760
• Feature/1270 by @wskozlowski in #761
• Feature/1276 by @wskozlowski in #762
• Feature/1277 by @wskozlowski in #763
• Feature/1279 by @wskozlowski in #764
• protecting immutable and embedded instances by @wskozlowski in #765
• Feature/1294 by @wskozlowski in #766
• Feature/issue 1291 by @KikiMcArron in #767

New Contributors

• @KikiMcArron made their first contribution in #767

Full Changelog: v0.3.0...v0.3.1

0.3.0

What's Changed

• Composite tags by @wskozlowski in #747
• Feature/1215 by @wskozlowski in #748
• Feature/1217 by @wskozlowski in #749
• init data masking by @wskozlowski in #750
• protecting masked fields + reset_protect_fields by @wskozlowski in #751
• nested atomic operations by @wskozlowski in #753
• feature(protect_fields): Added inheritance handling by @adrian-zawadzki in #752
• feature(protect_fields): added protect for CREATE operations by @adrian-zawadzki in #754
• Feature/1225 1223 by @adrian-zawadzki in #755
• feature(field_protect): added inheritance for getters and setters by @adrian-zawadzki in #756
• Feature/1233 1234 by @adrian-zawadzki in #757
• Feature/1257 by @wskozlowski in #758

Full Changelog: v0.2.4...v0.3.0

0.2.4

What's Changed

• fix(TagIndex): fixed problem with taging preinit objects by @adrian-zawadzki in #746

Full Changelog: v0.2.3...v0.2.4

0.2.3

What's Changed

• Bugfix/1156 by @adrian-zawadzki in #744

Full Changelog: v0.2.2...v0.2.3