Changelog

1.0.10

MMS reliability overhaul. Downloads and sends retry on their own, work per SIM, and respect carrier limits.
SMS reliability overhaul. Messages survive reboots, temporary failures and carrier quirks without being silently dropped.
Emoji reactions can now be sent.
Search and scrolling: search shows message previews, and the home screen has a custom fast scroller.

Tap an undownloaded MMS to download it. Pending downloads are retried when the app opens (#151).
Failed downloads and sends retry automatically with backoff when the cause is temporary, including an unreachable MMSC caused by no service.
Auto-download is decided per SIM. New settings toggle auto-download and roaming download.
Carrier config is loaded per SIM, with OEM overrides imported and the carrier user agent sent.
New carrier options are honoured:
- Long texts and emails switch to MMS when the carrier asks.
- Group chats start as group MMS when the carrier prefers it.
- Groups are sent individually on carriers without group MMS.
- Conversations stay within the carrier's recipient limit.
- MMS size defaults to the SIM's carrier limit, and the limit is shared between images by size.
Outgoing MMS lay out each part separately, with the text after the media.

Class 0 SMS pop up so you can save or dismiss them. A "replace" SMS takes the place of the last one.
Characters are simplified and counted according to the carrier default. Delivery reports are requested when the carrier gives them by default, unless you turn them off.
Waiting SMS are sent again when service returns, when the app starts, or when an SMS arrives.
Delayed SMS are rescheduled after a reboot, and interrupted ones fail visibly.
Copying an OTP marks the conversation read.

Fixed crashes on malformed network data, on unreadable audio attachments, and on large MMS (#114).
Expired MMS are kept instead of deleted on download errors, and deleted messages are dropped from Realm (#151).
Repeated pushes for an MMS you already have are ignored. Blocked senders with a type suffix are recognised, and anonymous senders are stored.
MMS are acknowledged from the SIM they arrived on and sent from the SIM that sends them.
A failed send or a download that couldn't start now notifies you instead of staying stuck on "sending" or "pending".
Empty or unreadable downloads are left to the user, and automatic downloads stop after 20 minutes.
An MMS larger than the carrier accepts fails instead of retrying forever.
The carrier response is checked before an MMS is marked sent, and the carrier config is honoured when appending the transaction ID.
Simultaneous sends no longer cancel each other's results.
The manufacturer config lookup now matches by exact name (including Honor).

Incoming SMS are never dropped when parts, text or sender are missing. They are stored in the provider before anything else and stay unseen until notified.
Long SMS now work correctly:
- Each part gets its own sent callback and delivery report.
- A long SMS is only marked sent when every part succeeded.
- Results are combined by the worst part, including across restarts.
- Each part is sent on its own when the carrier can't join them.
Failed sends now report properly:
- You're told about failures that happen before the system can send.
- The system's failure reason is shown.
- Failures are split into temporary (retried) and permanent.
- Resending from a notification only works while the message is still failed.
Delayed SMS:
- They are sent even without exact-alarm access.
- They are sent even if the phone was off at the scheduled time.
- They are never both an alarm and a job, and are not cancelled once started.
- "Send now" sends the original message once.
Unsent SMS resume at boot without delaying other boot work.
Text to an email address goes through the carrier's email gateway, and numbers are sent without their formatting.
Delivery reports are read by exact status, and empty ones are ignored.
Incoming SMS are dated by the network when the phone clock is clearly wrong, and everything the network sent is stored.

Compose attachments survive the app going to the background. They are deleted only after every send using them finishes, and only if they live in the app cache.
No voice note is attached when moving the recording fails.
New threads are created in Realm (#123), text highlight during selection is fixed (#105), and scheduled_options has a base value.
Fixed R8 crash in GalleryPagerAdapter (#130) and Ezvcard release-build crash.
Fixed registerReceiver calls (#83).
Settings show the delivery-report and simple-characters options as they actually apply.

Modularised the code into carrier, gif-encoder, otp-detector, mms-pdu and telephony modules, and dropped the android-smsmms dependency.
Removed the legacy MMS stack: TransactionService, OkHttp 2/Apache HTTP, the MMSC ack code and unused framework shims.
Added a fake MMSC with debug-only hooks and end-to-end MMS and SMS tests on the emulator.
The project is now REUSE compatible with SPDX headers, and a pre-commit config was added.

Full Changelog: v1.0.8...v1.0.10