Update changelog for release

[mathomp4]

Simple PR to update the changelog for release.

[coderabbitai]

Walkthrough

Updates CHANGELOG.md: adds Unreleased placeholders (Added/Removed/Deprecated), creates a new [25.3.1] entry dated 2025-10-02 with expanded Changed bullets covering dependency/workflow updates, and removes an empty Deprecated header before [24.11.3]. No code or API changes.

Changes

Cohort / File(s)	Summary of Changes
Changelog updates CHANGELOG.md	Added Unreleased placeholders; introduced [25.3.1] (2025-10-02) with detailed Changed items (dependency versions, basemap handling, file renames, TensorFlow/rasterio packaging notes); removed an empty Deprecated header before [24.11.3]; preserved prior 25.3.1 notes with added context.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• Prepare changelog for release #30 — Also restructures CHANGELOG.md with Unreleased sections and version header adjustments, aligning with this PR’s changelog formatting and structure changes.

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The title succinctly captures the core update by indicating that the changelog is being updated for a release, which matches the modifications made in CHANGELOG.md. It is concise, clear, and conveys the primary change without extraneous details.
Description Check	✅ Passed	The description explicitly states that this PR updates the changelog for a release, directly aligning with the changes made to the changelog file. It is on-topic and adequately describes the purpose, satisfying the lenient criteria.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feature/update-changelog-for-release

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a551c27 and f74f377.

📒 Files selected for processing (1)

• CHANGELOG.md (1 hunks)

🔇 Additional comments (2)

CHANGELOG.md (2)

14-19: Nice structural placeholders for Unreleased.

Adding the Added/Removed/Deprecated headings keeps the changelog aligned with the Keep a Changelog template and makes future updates smoother.

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20-47: Release notes read clearly.

The 25.3.1 section is thorough—version/date, rationale for dependency shifts, and package moves are all well documented.

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