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Add the F# hot reload session and FCS service surface - #20030

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NatElkins wants to merge 200 commits into

dotnet:mainfrom

NatElkins:hotreload-session

Open

Add the F# hot reload session and FCS service surface#20030
NatElkins wants to merge 200 commits into
dotnet:mainfrom
NatElkins:hotreload-session

Commits on Jul 17, 2026
- Add Roslyn-format EnC CustomDebugInformation codec and portable PDB method CDI emission
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  committed
  f6cad50
- Use ProcessStartInfo.Arguments for net472 compatibility
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  committed
  0d02145
- Make the EnC CDI test module public for xunit v3 discovery
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  66a1412
- Extract stable synthesized-name replay layer
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  c8639f3
- Add ECMA-335 EnC metadata delta writer
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  d6319c1
- Add typed-tree diff slice for hot reload
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  b0a487f
- Fix generated-name scope test in stable names slice
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  committed
  d505ab9
- Fix EnC CDI cross-validation test process launch on Desktop and bare CI images
  NatElkins
  committed
  7aaacc5
- Remove extra EOF blank line in delta metadata tests
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  c78b2f6
- Merge branch 'refresh/20260717/hotreload-typedtree-diff' into refresh/20260717/hotreload-delta-emitter
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  2facaf2
- Merge branch 'refresh/20260717/hotreload-stable-names' into refresh/20260717/hotreload-baseline-reader
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  cd1339b
- Merge branch 'refresh/20260717/enc-metadata-delta-writer' into refresh/20260717/hotreload-delta-emitter
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  ba5bce9
- Add hot reload baseline reader state
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  c23986b
- Extract hot reload delta emitter
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  ac6a1ba
- Fix synthesized-name snapshot assertions to use the array equality overload
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  11e8fa0
- Align the signature-change diff test with the evolved differ classification
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  b228654
- Validate hot reload baseline metadata inputs
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  3e1678d
- Enforce cumulative metadata delta invariants
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  5fdf705
- Validate hot reload generated names before classification
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  c584660
- Validate hot reload baseline metadata inputs
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  9a9211e
- Preserve reviewed lower-slice invariants in delta emitter
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  be6df7b
- Unify delta emission on the shared metadata writer
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  8932904
- Fail closed on unresolved accessor metadata
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  d40f0bc
- Extract hot reload session slice
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  11b50cc
- Fix CI compile breaks and extraction debris in the session slice tests
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  committed
  36ef5ba
- Fix net472 and CI-image portability breaks in session slice tests
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  330761c
- Drop the netcore-only Contains overload from delta builder tests
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  a886637
- Gate the Roslyn baseline comparison tests to .NET Core
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  9bb2547
- Normalize fixture line endings before update-source splicing
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  6420b62
- Update ilxgen name-path architecture guard
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  c67ec56
- Remove duplicate delta metadata test copies
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  a4b8616
- Remove duplicate compiler global reset member
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  4a1efa4
- Remove duplicate compiler global reset signature
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  7216294
- Repair session slice after metadata writer consolidation
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  2b461a8
- Make hot reload session updates transactional
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  9bf2891
- Report hot reload update capabilities
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  9112dab
- Report hot reload update capabilities
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  21dbd06
- Expose required hot reload capabilities
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  b26df0f
- Document F# hot reload rude-edit diagnostics
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  490f458
- Format delta metadata writer sources
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  16b0de1
- Format delta metadata writer sources
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  a402010
- Format hot reload compiler sources
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  24f4879
- Format hot reload compiler sources
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  34950ea
- Format hot reload compiler sources
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  733a531
- Format hot reload emitter sources
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  1248503
- Format hot reload session sources
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  254b36c
Commits on Jul 18, 2026
- Retry CI after Linux runner memory exhaustion
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  committed
  4768d1b
Commits on Jul 22, 2026
- Add typed-tree diff slice for hot reload
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  bdb1d28
- Make typed-tree diff classification fail closed
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  1a5c97e
- Format hot reload compiler sources
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  f7dd5dd
- Add ECMA-335 EnC metadata delta writer
  NatElkins
  committed
  c2d4c86
- Remove extra EOF blank line in delta metadata tests
  NatElkins
  committed
  83696d2
- Enforce cumulative metadata delta invariants
  NatElkins
  committed
  6cc71de
- Format delta metadata writer sources
  NatElkins
  committed
  7e2770f
- Retry CI after regression job timeout
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  078961d
- Share delta user string encoding and trace configuration
  NatElkins
  committed
  33fceef
- Harden hot reload session capture and file handling
  NatElkins
  committed
  0e55c15
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-session
  NatElkins
  committed
  ad6c411
- Handle metadata-only methods in PDB ambiguity checks
  NatElkins
  committed
  e981e30
- Share delta user string encoding and trace configuration
  NatElkins
  committed
  1f7a82b
- Make synthesized name snapshots deterministic
  NatElkins
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  06378d5
- Harden typed-tree diff classification
  NatElkins
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  6129dda
- Harden baseline metadata parsing
  NatElkins
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  4ad2364
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-baseline-reader
  NatElkins
  committed
  88c0c62
- Handle metadata-only methods in PDB ambiguity checks
  NatElkins
  committed
  9dad496
- Make synthesized name snapshots deterministic
  NatElkins
  committed
  e7531a7
- Harden typed-tree diff classification
  NatElkins
  committed
  eaaf64e
- Harden baseline metadata parsing
  NatElkins
  committed
  2491370
- Harden delta metadata identity and cleanup
  NatElkins
  committed
  ac42fbf
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-delta-emitter
  NatElkins
  committed
  2aefa5f
- Handle metadata-only methods in PDB ambiguity checks
  NatElkins
  committed
  17f464f
- Share delta user string encoding and trace configuration
  NatElkins
  committed
  25eca5c
- Make synthesized name snapshots deterministic
  NatElkins
  committed
  98aeadb
- Harden typed-tree diff classification
  NatElkins
  committed
  e84c143
- Harden baseline metadata parsing
  NatElkins
  committed
  2a827b0
- Harden delta metadata identity and cleanup
  NatElkins
  committed
  01d19b1
- Ignore transient provider scopes in body identity
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  118edc8
- Ignore transient provider scopes in body identity
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  eb661b3
Commits on Jul 23, 2026
- Bound decision-tree identity traversal
  NatElkins
  committed
  e3e089d
- Bound baseline string heap reads
  NatElkins
  committed
  7ffe458
- Bound decision-tree identity traversal
  NatElkins
  committed
  42d29eb
- Fail closed on closure-name recapture mismatch
  NatElkins
  committed
  0b44ec4
- Bound baseline string heap reads
  NatElkins
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  7b00822
- Bound decision-tree identity traversal
  NatElkins
  committed
  ec0f30b
- Bound baseline string heap reads
  NatElkins
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  f2d7c1e
- Format bounded string heap reader
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  a052db3
- Format bounded string heap reader
  NatElkins
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  474bbef
- Make closure recapture test deterministic
  NatElkins
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  9f6a761
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-session
  NatElkins
  committed
  e5d6392
Commits on Jul 24, 2026
- Merge branch 'main' into enc-metadata-delta-writer
  T-Gro
  authored
  54cd67d
- Merge branch 'main' into hotreload-typedtree-diff
  T-Gro
  authored
  62df5dc
- Merge remote-tracking branch 'origin/main' into refresh/20260717/enc-metadata-delta-writer
  NatElkins
  committed
  8d28083
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-typedtree-diff
  NatElkins
  committed
  b492d58
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-baseline-reader
  NatElkins
  committed
  ead308d
- Merge remote-tracking branch 'origin/main' into refresh/20260717/hotreload-delta-emitter
  NatElkins
  committed
  7622b7e
- Complete hot reload merge integration
  NatElkins
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  c83b6ab
- Fix compiled baseline metadata table parsing
  NatElkins
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  6c7a61b
- Update delta metadata test writer options
  NatElkins
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  4386ab1
- Complete baseline reader merge integration
  NatElkins
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  e0a38af
- Merge branch 'refresh/20260717/enc-metadata-delta-writer' into refresh/20260717/hotreload-delta-emitter
  NatElkins
  committed
  e1d6a50
- Merge branch 'refresh/20260717/hotreload-typedtree-diff' into refresh/20260717/hotreload-delta-emitter
  NatElkins
  committed
  3ce3b14
- Merge branch 'refresh/20260717/hotreload-baseline-reader' into refresh/20260717/hotreload-delta-emitter
  NatElkins
  committed
  b994397
- Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
  NatElkins
  committed
  cf0202c
- Complete session merge integration
  NatElkins
  committed
  469a3b2
- Deduplicate merged compiler source entries
  NatElkins
  committed
  5b12365
- Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
  NatElkins
  committed
  4c0bba2
- Remove obsolete baseline reader copy
  NatElkins
  committed
  000171d
- Merge branch 'refresh/20260717/hotreload-delta-emitter' into refresh/20260717/hotreload-session
  NatElkins
  committed
  e9b19d1
- Renumber hot reload driver diagnostics
  NatElkins
  committed
  a34afbc
- Place baseline reader release note in current FCS notes
  NatElkins
  committed
  0ad1dce
- Merge refreshed baseline reader release note
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  committed
  47e92ee
- Deduplicate composite release notes
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  committed
  5bdb691
- Merge refreshed delta emitter release notes
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  committed
  88053ca
- Give session slice a single current release note
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  1511b10
- Keep hot reload diagnostics sorted
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  238ebb6
- Merge current main
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  06e0ad8
- Merge current main
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  e56776f
- Merge current main
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  committed
  6218916
- Merge refreshed enc-metadata-delta-writer
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  committed
  2ec1bd2
- Merge refreshed hotreload-typedtree-diff
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  committed
  5f359e8
- Merge refreshed hotreload-baseline-reader
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  b2642b8
- Merge refreshed delta emitter
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  ea8c3d3
Commits on Aug 6, 2026
Commits on Aug 14, 2026
Commits on Sep 25, 2026
- Merge current compiler changes into the hot reload session
  NatElkins
  committed
  af22915
- Merge current main into the typed-tree diff slice
  NatElkins
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  f5490d5
- Merge current main into the delta emitter slice
  NatElkins
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  de2069f
- Use the public calling convention properties
  NatElkins
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  3e6f5d8
- Use the public calling convention properties
  NatElkins
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  149da1c
- Keep independent hot reload baselines for long output options
  NatElkins
  committed
  e6582e4
- Detect hot reload metadata edits without body bindings
  NatElkins
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  9b49030
- Merge the refreshed typed-tree diff and preserve capability classification
  NatElkins
  committed
  7e69254
- Allocate resumption metadata only for hot reload capture
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  committed
  bd33519
- Assert resolved output identifiers for independent hot reload sessions
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  22abc46
- Keep intrinsic parameter identities stable across compilations
  NatElkins
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  6dd9edd
- Preserve original metadata identities in disk hot reload sessions
  NatElkins
  committed
  450a42a
- Use the repository SDK for metadata validation fixtures
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  740046e
- Merge refreshed delta emitter dependencies into hot reload sessions
  NatElkins
  committed
  30cf2f7
- Adapt inherited typed tree regressions to the session test module
  NatElkins
  committed
  b66ae91
- Validate emitted deltas and preserve native pointer identities
  NatElkins
  committed
  79e39a7
- Distinguish the inherited ParamArray regression name
  NatElkins
  committed
  caa5bb9
- Track emitted extension receiver metadata
  NatElkins
  committed
  675092f
- Isolate disk-start fixtures from previous capture sessions
  NatElkins
  committed
  4c605c7
- Match extension method metadata to emitted signatures
  NatElkins
  committed
  125e0c9
- Merge refreshed typed-tree receiver metadata detection
  NatElkins
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  bd97f70
- Merge validated metadata and extension receiver fixes
  NatElkins
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  feaecf0
- Verify extension receiver parameter updates through runtime apply
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  ac66be4
- Report metadata validator failures instead of skipping them
  NatElkins
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  38a64c0
- Set explicit capabilities in inherited parameter rename regressions
  NatElkins
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  b244ee3
- Reject runtime async implementation transitions during hot reload
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  b4c1b83
- Merge final emitter validation and runtime async safeguards
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  ec1c2a4
- Clarify the runtime async restart requirement
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  57e2fea
- Merge final runtime async documentation
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  507232d
Commits on Oct 27, 2026
- Merge main and isolate hot reload captures by output
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  7234a30
- Keep tracked input probes inside hot reload sessions
  NatElkins
  committed
  caa6c48
- Match Roslyn parameter associations in hot reload deltas
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  4ddbd37
- Address historical hot reload review feedback
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  committed
  61bf359
- Separate declaration matching and added-definition row preparation
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  a49dcb4
Commits on Oct 29, 2026
- Avoid redundant snapshots when committing hot reload sessions
  NatElkins
  committed
  aaa9563
- Allocate local value identities only when needed
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  db76b9a
- Remove redundant canonical path length check
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  d37f267
- Check module storage before comparing initializer bodies
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  debd77c
- Compare sequence points without a temporary pair list
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  7af9eec
- Find line-shift bounds without projected lists
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  178a8a3
- Skip alias snapshots for recorded synthesized names
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  38e0b59
- Deduplicate method updates without a reversed list
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  7dc5867
Commits on Oct 30, 2026
- Use immutable capability sets with stable diagnostic order
  NatElkins
  committed
  96ea5de
- Reuse exact-value environment switch checks
  NatElkins
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  ba7a61d
- Format rude edit diagnostics without intermediate strings
  NatElkins
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  5fa4385
- Collect tracked inputs in one ordered pass
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  c74868c
- Use value options for hot reload symbol lookups
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  e0aa055
- Reduce closure naming and resumption point allocations
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  committed
  1f1463b
- Name internal checked project implementation fields
  NatElkins
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  ba67dd8
- Avoid temporary collections in hot reload preparation
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  baf0a24
- Preserve cancellation through hot reload error recovery
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  committed
  17441af
- Observe cancellation while awaiting stable hot reload output
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  committed
  df69c82
- Skip metadata snapshots for ordinary in-memory emission
  NatElkins
  committed
  6d39e9f
- Assert actual PDB delta documents and heap contents
  NatElkins
  committed
  e5aaec2
- Dispose each portable PDB content hash provider
  NatElkins
  committed
  3f381a3
- Preserve cancellation in hot reload metadata fallbacks
  NatElkins
  committed
  b285d73
- Keep the in-memory writer result private
  NatElkins
  committed
  c121fdd
- Apply scoped F# conventions to hot reload helpers
  NatElkins
  committed
  fb4793e
- Skip hot reload context lookup without registered projects
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  committed
  b457bc3
- Avoid optional allocation during closure name overrides
  NatElkins
  committed
  0b9add5
- Remove redundant rude-edit severity helper
  NatElkins
  committed
  fa79c59
- Clarify closure identity and state-machine comments
  NatElkins
  committed
  2e2fad2

Commits

Commits on Jul 17, 2026

Commits on Jul 18, 2026

Commits on Jul 22, 2026

Commits on Jul 23, 2026

Commits on Jul 24, 2026

Commits on Aug 6, 2026

Commits on Aug 14, 2026