6.1.0 Release notes (2020-08-27)

Enhancements

• toJSON() implemented for Realm.Collection, to return a nicer serializable Array. (#3013)
• Realm.JsonSerializationReplacer exposed as a replacer (for usage with JSON.stringify) to handle circular structures.(#3013)
• TS: Stricter model validation for create<T>(...). (#3013)

Fixed

• toJSON() no longer throws "RangeError: Maximum call stack size exceeded" when a circular structure is encountered (applies for both Realm.Object & Realm.Collection). (#3013)
• TS: objects<T>(...) now sets return types reflecting underlying implementation. (#3013)
• Holding a shared lock while being suspended on iOS would cause the app to be terminated. ([#6671])(realm/realm-swift#6671)
• If an attempt to upgrade a realm has ended with a crash with "migrate_links" in the call stack, the realm ended in a corrupt state where further upgrade was not possible.

Compatibility

• Realm Object Server: 3.23.1 or later.
• Realm Studio: 3.11 or later.
• APIs are backwards compatible with all previous release of Realm JavaScript in the 6.x.y series.
• File format: Generates Realms with format v10 (reads and upgrades previous file format).

Internal

• Upgraded Realm Core from v6.0.19 to v6.0.21.
• Upgraded Realm Sync from v5.0.16 to v5.0.18