v0.42.1

Notable changes:

Application loading screen: We now properly process read receipts, delivery receipts and other types of sync messages before dismissing the screen.

Fix: Properly report decryption errors when they happen

Fix: Slow down expiring message processing, especially on startup (may result in lower CPU/memory usage)

v0.42.0

Verified contacts:

• Ability to verify a contact's safety number, same for group's members via the 'Show members' screen
• Check mark next to verified contacts, and next to 100%-verified groups
• Synchronization of verification decisions across devices
• Banner and confirmation on send when previously-verified safety number changes
• Confirmation on send if safety number has changed very recently
• Updated message detail screen when a message fails due to a safety number change

Delete individual message from message detail screen

Clearer error text when a message to a group partially fails

Icons for in-conversation timer change and key change notifications

We now drop duplicate messages when we receive them

A number of reliability fixes:

• New 'unprocessed' cache for messages not yet fully processed, attempted re-process on startup
• Protections against 'wedged' conversations, which won't receive or send messages until restart
• Better resilience to errors throughout the codebase

Application loading screen until server backlog is fully processed:

• Shows messages processed so far
• Prevents large numbers of notifications from firing on application startup

Conversation loading screen

Unloading of conversations and old messages due to inactivity to reduce memory usage

Potential fix for "Too many message keys for chain" (caused after desktop is offline for long time)