7fd93348e81f484c4ec2dcca8cde5fa6ed7412fe #4661 Thanks @js2me! - Fix Stage 3 @computed overrides that delegate to a same-named parent getter via super.

02afa5b6c33441737df81d344161a03bb9aea0c8 #4666 Thanks @kubk! - Remove outdated Flow typechecker support artifacts from the package.

6b3fb0ee725c0521bbaf7ba901a30261472a0e71 #4639 Thanks @ashishkr96! - feat(mobx): make the 2022.3 @computed decorator lazy. ComputedValue is now created on first read of the decorated getter rather than eagerly during instance construction, avoiding wasted allocations for getters that are never used. On a 50k-instance × 10-getter class with one read per instance this cuts construction heap by ~50% and construction time by ~25%; the steady-state read path is unchanged. Closes #4616.

f0c68749428fd4d3bba48e9685e44fd1ddbbee76 #4658 Thanks @ashishkr96! - feat(mobx): make the 2022.3 @observable accessor decorator lazy. ObservableValue is now created on first read/write/observe of the decorated accessor rather than eagerly during instance construction, avoiding wasted allocations for fields that are never touched. On a 50k-instance × 10-field class with sparse access (1 of 10 fields read per instance), this cuts construction heap by ~82% and construction time by ~86% versus the eager path. Follow-up to #4639.

7eb54418b16fb9b415c04c5b8e05779790dd74ed #4659 Thanks @kubk! - Fix regression from #4639 where isComputedProp returned false for lazy @computed properties before first read

c22b4b705447a4ccdce93473255f4beb170613f3 #4657 Thanks @kubk! - Add getOrInsert and getOrInsertComputed to ObservableMap for compatibility with ESNext Map typings.

df81c144fb148b64140d761aa61f032a7f429e12 #4523 Thanks @exzos28! - Make FlowCancellationError a proper Error instance while preserving its previous string representation.

21fc4de6c09a77caf115aedd2fe6df972637412b #4626 Thanks @kubk! - Export CancellablePromise from the public mobx entrypoint.