v4.3.1 (2026-01-17)

• normalize_url(): workaround for issue #467 (UNC paths with Python < 3.12.5)
• META_SCHEMA and BASE_SCHEMA paths converted to 'file' URL scheme
• Clean optional dependencies

v4.3.0 (2026-01-06)

• Add arguments validation for schemas and validation methods (by validation contexts)
• Add custom XPath parser for find/findall/iterfind APIs on schemas for match
  singleton sequence also if position is a number greater than 1 in predicate
  expression (issue #468)
• Improve build of XSD elements and groups, using a three-state built flag for
  components
• Extend and fix memory tests (Python 3.14+ seems to consume more memory)
• Drop support for Python 3.9 and add development support for Python 3.15

v4.2.0 (2025-10-14)

• Add arguments validation for schemas and validation methods (by validation contexts)
• Add SchemaSettings dataclass for storing read-only settings for schema instances
  and for managing package default settings
• Add block argument to XMLResource class (issue #464)
• Add MAX_SCHEMA_SOURCES package limit (1000, applied to XsdGlobals global maps instances)
• Add MAX_XML_ELEMENTS package limit (1,000,000, applied to non-lazy XMLResource instances)
• Reduce MAX_XML_DEPTH limit to 1000 and apply it to all XMLResource instances
• Fix for substitute match in case of unexpected child (issue #461)

v4.1.0 (2025-06-05)

• Add XPath selectors: ElementSelector and ElementPathSelectors
• Add selector argument to XMLResource and iterparse filters
• Fix element substitution (issue #452)
• Restore v3.4.5 builder methods as helpers (issue #451)
• Add overall_min_occurs and overall_max_occurs helpers to XsdElement (issue #449)
• Extend error message for XML syntax errors (issue #448)
• Fix query/fragment like for filenames (issue #447)

v4.0.1 (2025-04-13)

• Fix XSD identity update with xsi:type substitution (issue #446)

v4.0.0 (2025-04-11)

• Extend support of lxml.etree through iterparse optional argument
• Rework internal decoding/encoding methods, replacing generators with normal functions
• Replace kwargs with a validation context (DecodeContext and EncodeContext)
• Add SchemaLoader class and variants (related to #419)
• Slicing of XsdGlobals with parent maps
• Fix XsdUnion validation performance issue (related to #442)
• Drop support for Python 3.8

v3.4.5 (2025-03-22)

• Fix xs:all groups occurs check (issue #437)

v3.4.4 (2025-03-18)

• Migrate project metadata to pyproject.toml by @afuetterer (PR #436)
• Fix static typing errors with mypy==1.15.0 and elementpath==4.8.0

v3.4.3 (2024-10-31)

• Fix incorrect validation error for substitution group with abstract head (issue #417)
• Refactor XSD identities processing using also typed XPath 2.0+ for getting values (issue #418)
• Clean tag retrieval during encode for some converter types (Abdera, BadgerFish and GData)

v3.4.2 (2024-09-17)

• Fix other failing URL normalization tests
• Avoid the use of sys.version_info for checking results, better to extend the check to more values.