QT4 CG Meeting 161 Agenda 2026-04-21

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Agenda

This meeting will be hosted on Zoom at 16:00BST (15:00GMT, 17:00CEST, 11:00EDT).

See the meeting logistics page for more details.

1. Administrivia

1.1. Roll call

1.2. Approve the agenda

1.3. Approve minutes of previous meeting

Minutes of the previous meeting.

1.4. Next meeting

This meeting is planned for 21 April 2026.

The next meeting is planned for 28 April 2026.

1.5. Review of open action items [0/9]

  • [ ] QT4CG-143-02: MK to try to recover the ability to extract formal equivalences into tests
  • [ ] QT4CG-144-01: MK to consider if any now lost value comparisons should be added as examples.
  • [ ] QT4CG-150-04: NW to see about a status update on PR #2345; possibly schedule discussion
  • [ ] QT4CG-156-01: MK: add reference to data model in F&O 9.2
  • [ ] QT4CG-156-03: MK to revise PR #2516 in light of the comments.
  • [ ] QT4CG-158-01: MK to revisit the Conformance section to revise in light of #2556 error changes
  • [ ] QT4CG-158-02: MK to add system-properties() keys for file and binary support
  • [ ] QT4CG-160-01: MK to fix the markup error in method/method call in #2578
  • [ ] QT4CG-160-02: NW to think about how to promote the dated drafts for broader community feedback.

1.6. Review of open pull requests and issues

This section summarizes all of the issues and pull requests that need to be resolved before we can finish. See Technical Agenda below for the focus of this meeting.

1.6.1. Blocked

The following PRs are open but have merge conflicts or comments which suggest they aren’t ready for action.

  • PR #2350: 708 An alternative proposal for generators
  • PR #2345: 2299 Expand pipeline to allow arrow expression in path expression
  • PR #2247: 716 Deferred Evaluation in XPath - the f:generator record
  • PR #2160: 2073 data model changes for JNodes and Sequences
  • PR #2071: 77c deep update
  • PR #2019: 1776: XSLT template rules for maps and array

1.6.2. Merge without discussion

The following PRs are editorial, small, or otherwise appeared to be uncontroversial when the agenda was prepared. The chairs propose that these can be merged without discussion. If you think discussion is necessary, please say so.

  • PR #2586: 2408 Misc editorial fixes
  • PR #2583: Fix typo in example of map type declarations

1.6.3. Close without action

It has been proposed that the following issues be closed without action. If you think discussion is necessary, please say so.

  • Issue #2582: bin:hex: return xs:hexBinary?

1.6.4. Substantive PRs

The following substantive PRs were open when this agenda was prepared.

  • PR #2566: 1979 Records with type annotations
  • PR #2470: 1310 Function fn:matching-segments

1.6.5. Required for V4.0

The following issues are labeled “required for V4.0”.

  • Issue #1777: Shallow copy in XSLT with maps and arrays
  • Issue #675: XSLT streaming rules for new constructs

2. Technical agenda

2.1. PR #2566: 1979 Records with type annotations

See PR #2566

2.2. PR #2470: 1310 Function fn:matching-segments

See PR #2470

2.3. Issue 2489: fn:parts-of-dateTime, fn:parse-uri: names & types

See issue #2489.

This issue is marked propose closing after discussion.

2.4. Issue 2314: fn:error: return type xs:error ?

See issue #2314.

This issue is marked propose closing after discussion.

2.5. Issue 2312: Map/Array Filter: too much syntactic sugar?

See issue #2312.

This issue is marked propose closing after discussion.

3. Any other business