## 6.12.1 (2026-03-11) ### Bug fixes Fix an issue in chunk recomputation where it might duplicate chunks at the start of the document. ## 6.12.0 (2026-02-15) ### Bug fixes Fix an issue where a change that made both documents empty could leave an invalid chunk. ### New features The diffing routine used can now be replaced with a custom implementation via `DiffConfig.override`. ## 6.11.2 (2025-11-07) ### Bug fixes Fix a bug in `Chunk.updateA`/`updateB` that would cause it to drop an insertion or deletion chunk at the very end of the document. ## 6.11.1 (2025-10-23) ### Bug fixes Export a function that allows you to find the sibling of a given editor in a merge view. ## 6.11.0 (2025-10-02) ### New features The `mergeControls` option to the unified merge view can now be a function, which will be used to render the buttons. ## 6.10.2 (2025-06-09) ### Bug fixes Fix an issue where chunks in the unified diff weren't updated properly when a single transaction changed for the original and the edited document. ## 6.10.1 (2025-05-14) ### Bug fixes Fix an issue in `presentableDiff` where it sometimes doesn't expand changes over words with multiple individual changes in them. ## 6.10.0 (2025-03-06) ### New features The new `allowInlineDiffs` option to `unifiedMergeView` will display chunks with only limited inline changes inline in the code. ## 6.9.0 (2025-03-03) ### New features The new diff option `timeout` can be used to make the algorithm bail out after a given amount of milliseconds. Chunks now have a `precise` property that is false when the diff that the chunk is based on fell back to imprecise diffing (because of a scan depth limit or timeout). ## 6.8.0 (2024-12-30) ### Bug fixes Limit the size of highlighted chunks in the unified view, to prevent freezing the interface highlighting huge amounts of code. Fix a regression that caused deleted chunks in the unified view to be rendered with strike-through style by default. ### New features Export the `uncollapseUnchanged` effect that is used to uncollapse sections of code. ## 6.7.5 (2024-12-17) ### Bug fixes Fix a bug that hid the accept/reject buttons for insertions in the unified merge view. The lines shown around collapsed unchanged lines are now css `:before`/`:after` elements, so that they can be customized more easily. Render deleted lines in the unified merge view as block elements, for easier styling. ## 6.7.4 (2024-11-13) ### Bug fixes In the unified diff view, fix an issue where empty deleted lines were rendered for chunks that deleted nothing. Fix a bug that made the diff algorithm miss some obvious opportunities to align changes on line boundaries. ## 6.7.3 (2024-11-05) ### Bug fixes Fix an issue where the last line of a deleted chunk, if there is no text on it, was collapsed by the browser and not visible. ## 6.7.2 (2024-10-10) ### Bug fixes Fix a bug in `presentableDiff` that could cause it to produce corrupted diffs. ## 6.7.1 (2024-09-17) ### Bug fixes Improve the way `presentableDiff` aligns changes to line boundaries when possible. ## 6.7.0 (2024-08-18) ### New features `unifiedMergeView` now supports the `collapseUnchanged` option the way the split view does. ## 6.6.7 (2024-07-31) ### Bug fixes Fix a bug in the way spacers were inserted at the top of the viewport. ## 6.6.6 (2024-07-30) ### Bug fixes Improve vertical alignment of huge unchanged chunks in the side-by-side view. ## 6.6.5 (2024-07-18) ### Bug fixes Fix an issue that would corrupt the text displayed for some deleted lines in the unified merge view. ## 6.6.4 (2024-07-18) ### Bug fixes Fix syntax and change highlighting in deleted lines in the unified merge view. ## 6.6.3 (2024-06-07) ### Bug fixes Fix `originalDocChangeEffect` to apply the changes to the appropriate document. ## 6.6.2 (2024-05-17) ### Bug fixes Restore the default scan limit when diffing for chunks, which looks like it was accidentally dropped when it was made configurable in 6.3.0. ## 6.6.1 (2024-03-08) ### Bug fixes Fix a bug that could cause the set of changed chunks to be updated incorrectly on some types of changes. ## 6.6.0 (2024-01-25) ### Bug fixes Fix a bug where big deletions could corrupt the merge state. ### New features The state effect used to change the original document in a unified merge view is now available to client code as `updateOriginalDoc`. ## 6.5.0 (2024-01-04) ### New features The new `changeOriginalDocEffect` function can be used to update the reference document in a unified merge editor. ## 6.4.0 (2023-12-14) ### New features The `getOriginalDoc` function extracts the original document from a unified merge editor. ## 6.3.1 (2023-12-03) ### Bug fixes Add a `userEvent` annotation to transactions that accept a change in the unified merge view. Fix CSS selectors in the merge view base theme to avoid affecting the style of non-merge view editors. ## 6.3.0 (2023-11-16) ### New features Merge views (and `Chunk` building methods) now take an optional diff config object to allow precision to be configured. ## 6.2.0 (2023-10-06) ### New features The package now exports `goToNextChunk` and `goToPreviousChunk` commands that allow by-changed-chunk document navigation. ## 6.1.3 (2023-09-28) ### Bug fixes Create alignment spacers for the whole document, not just the viewport, to avoid scroll position popping and misalignment. ## 6.1.2 (2023-08-18) ### Bug fixes Fall back to treating entire documents as changed when they are too large to compute a diff in a reasonable timeframe. ## 6.1.1 (2023-06-05) ### Bug fixes Fix a crash when `unifiedMergeView` is added to an existing state by reconfiguration. ## 6.1.0 (2023-05-06) ### Bug fixes Add ``/`` tags around inserted and deleted lines to give screen readers a chance to communicate their role. ### New features The new `unifiedMergeView` extension can be used to display a diff inside a single editor, by inserting deleted content as widgets in the document. ## 6.0.2 (2023-04-18) ### Bug fixes Fix a bug that could cause `diff` to loop endlessly when the input contains astral characters in specific positions. ## 6.0.1 (2023-03-28) ### Bug fixes Fix a bug that would cause diffing to loop infinitely with some inputs. ## 6.0.0 (2023-03-22) ### Bug fixes Improve performance of the merge view when the inputs are almost entirely different. ### New features `diff` and `presentableDiff` now take an optional `scanLimit` option that can be used to trade speed for accuracy on very different inputs. ## 0.1.6 (2023-02-28) ### Bug fixes Fix a bug where changed chunks could be found in equal documents. ## 0.1.5 (2023-02-26) ### New features `Chunk` now exposes static methods for building an updating sets of chunks directly. ## 0.1.4 (2023-02-17) ### Bug fixes Fix a bug that caused an extra stray newline to be inserted when pressing the merge button for a change at the end of the document. Avoid generating incorrect chunks for insertions or deletions at the end of the document. ## 0.1.3 (2022-12-09) ### New features It is now possible to change the configuration of a merge view with its `reconfigure` method. ## 0.1.2 (2022-12-05) ### New features The `Chunk` data structure, and the set of chunks kept by the merge view, are now part of the public interface. The new `orientation` option makes it possible to show editor B first. ## 0.1.1 (2022-11-14) ### Bug fixes Color changed chunks in editor A red by default. ## 0.1.0 (2022-11-10) ### Breaking changes First numbered release.