Realm JavaScript v12.6.0

Enhancements

• Added an optional fetch parameter to the AppConfiguration. Use this to specify a custom implementation of the fetch function used by the app to perform network requests.

Fixed

• Handle EOPNOTSUPP when using posix_fallocate() and fallback to manually consume space. This should enable android users to open a Realm on restrictive file systems. (#6349, since v12.2.0)
• Application may crash with incoming_changesets.size() != 0 when a download message is mistaken for a bootstrap message. This can happen if the synchronization session is paused and resumed at a specific time. (realm/realm-core#7238, since v10.12.0)
• Fixed errors complaining about missing symbols such as __atomic_is_lock_free on ARMv7 Linux. (realm/realm-core#7257)

Compatibility

• React Native >= v0.71.4
• Realm Studio v14.0.0.
• File format: generates Realms with format v23 (reads and upgrades file format v5 or later for non-synced Realm, upgrades file format v10 or later for synced Realms).

Internal

• Upgraded Realm Core from v13.25.1 to v13.26.0. (#6403)
• Bumping the required MacOS version to 10.13.