Update UMAP requirement to 0.3.0

[dependabot]

Updates the requirements on UMAP to permit the latest version.

Release notes

Sourced from UMAP's releases.

v0.3.0

UMAP v0.3.0

Diff since v0.2.0

Breaking changes

• Embedding format changed: result.embedding is now a Matrix{T} of shape (n_dims, n_points) instead of Vector{Vector{T}}

  # Old (v0.2)
  result.embedding[i]          # Vector for point i
  New (v0.3)
  result.embedding[:, i]       # Column for point i

• Graph edge weights are Float32: result.graph now has eltype of Float32

Merged pull requests:

• Benchmarks (#61) (@​dillondaudert)
• Opinionated UMAP graph and embedding: Float32, Matrix instead of Vec{Vec} (#62) (@​dillondaudert)
• Fix julia 1.10 support (#67) (@​dillondaudert)
• Bump version from 0.2.0 to 0.3.0 (#70) (@​dillondaudert)

Changelog

Sourced from UMAP's changelog.

v0.3.0

Performance-focused release with Float32 graph internals and Matrix embedding format.

Performance Improvements

• Uniform embedding initialization: 7-14x faster, 3-10x less memory
• Embedding optimization: 8-10% faster due to better cache locality
• Graph construction: 15-28% less memory for simplicial set operations
• Overall fit/transform: Neutral to 7% faster, 3-20% less memory

Breaking Changes

• Embedding format changed: result.embedding is now a Matrix{T} of shape (n_dims, n_points) instead of Vector{Vector{T}}

  # Old (v0.2)
  result.embedding[i]          # Vector for point i
  New (v0.3)
  result.embedding[:, i]       # Column for point i

• Graph edge weights are Float32: result.graph now has eltype of Float32

Bug Fixes

• Julia 1.10 compatibility restored: the public keyword (Julia 1.11+) caused a ParseError on Julia 1.10, breaking precompilation despite 1.10 being declared compatible. Now uses Compat.@compat public ..., which is a no-op on 1.10. Added Compat (≥ 4.10) dependency.

Internal Changes

• Dependency updates via Dependabot: replaced the CompatHelper workflow with GitHub-native Dependabot (.github/dependabot.yml), which also keeps GitHub Actions versions current (PSA)
• SourceViewParams and SourceGlobalParams now use fixed Float32 fields (no longer type-parameterized)
• MembershipFnParams.a and MembershipFnParams.b are now Float32
• smooth_knn_dists returns Float32 arrays for ρs and σs
• SMOOTH_K_TOLERANCE changed to 1.0f-5

---

v0.2.0 (2025-01-08)

Version 0.2 is a major redesign of UMAP.jl focused on generality, extensibility, and better integration with the Julia ecosystem. This release introduces breaking changes to the API and internal structure.

New Features

• Multi-view UMAP: Native support for multi-modal data through NamedTuple inputs

  data = (images=X_images, text=X_text)
  result = UMAP.fit(data, ...) # advanced usage API

... (truncated)

Commits

• 0001763 Update release header for v0.3.0
• c698131 Merge pull request #70 from dillondaudert/dillondaudert-patch-2
• b2a1fc7 Bump version from 0.2.0 to 0.3.0
• 8cc9f1a Merge pull request #67 from dillondaudert/fix_1_10
• 8a526b8 Update to dependabot
• 1e8defc Fix julia 1.10 support
• 468619c Merge pull request #62 from dillondaudert/f32_perf
• f088051 Update HISTOY
• 5d6be0a Update docs and docstrings
• 9a79b6a Opinionated embedding: matrix for _EuclideanManifold; update tests to reflect
• Additional commits viewable in compare view

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