Deltachat

- `fetch_existing` renamed to `fetch_existing_msgs` and disabled by default
2035 2042

- skip fetch existing messages/contacts if config-option `bot` set 2017

- always log why a message is sorted to trash 2045

- display a quote if top posting is detected 2047

- add ephemeral task cancellation to `dc_stop_io()`;
before, there was no way to quickly terminate pending ephemeral tasks 2051

- when saved-messages chat is deleted,
a device-message about recreation is added 2050

- use `max_smtp_rcpt_to` from provider-db,
sending messages to many recipients in configurable chunks 2056

- fix handling of empty autoconfigure files 2027

- fix adding saved messages to wrong chats on multi-device 2034 2039

- fix hang on android4.4 and other systems
by adding a workaround to executer-blocking-handling bug 2040

- fix secret key export/import roundtrip 2048

- fix mistakenly unarchived chats 2057

- fix outdated-reminder test that fails only 7 days a year,
including halloween :) 2059

- improve python bindings 2021 2036 2038

- update provider-database 2037

- breaking change: `dc_update_device_chats()` removed;
this is now done automatically during configure
unless the new config-option `bot` is set 1957

- breaking change: split `DC_EVENT_MSGS_NOTICED` off `DC_EVENT_MSGS_CHANGED`
and remove `dc_marknoticed_all_chats()` 1942 1981

- breaking change: remove unused starring options 1965

- breaking change: `DC_CHAT_TYPE_VERIFIED_GROUP` replaced by
`dc_chat_is_protected()`; also single-chats may be protected now, this may
happen over the wire even if the UI do not offer an option for that 1968

- breaking change: split quotes off message text,
UIs should use at least `dc_msg_get_quoted_text()` to show quotes now 1975

- new api for quote handling: `dc_msg_set_quote()`, `dc_msg_get_quoted_text()`,
`dc_msg_get_quoted_msg()` 1975 1984 1985 1987 1989 2004

- require quorum to enable encryption 1946

- speed up and clean up account creation 1912 1927 1960 1961

- configure now collects recent contacts and fetches last messages
unless disabled by `fetch_existing` config-option 1913 2003
EDIT: `fetch_existing` renamed to `fetch_existing_msgs` in 1.48.0 2042

- emit `DC_EVENT_CHAT_MODIFIED` on contact rename
and set contact-id on `DC_EVENT_CONTACTS_CHANGED` 1935 1936 1937

- add `dc_set_chat_protection()`; the `protect` parameter in
`dc_create_group_chat()` will be removed in an upcoming release;
up to then, UIs using the "verified group" paradigm
should not use `dc_set_chat_protection()` 1968 2014 2001 2012 2007

- remove unneeded `DC_STR_COUNT` 1991

- mark all failed messages as failed when receiving an NDN 1993

- check some easy cases for bad system clock and outdated app 1901

- fix import temporary directory usage 1929

- fix forcing encryption for reset peers 1998

- fix: do not allow to save drafts in non-writeable chats 1997

- fix: do not show HTML if there is no content and there is an attachment 1988

- fix recovering offline/lost connections, fixes background receive bug 1983

- fix ordering of accounts returned by `dc_accounts_get_all()` 1909

- fix whitespace for summaries 1938

- fix: improve sentbox name guessing 1941

- fix: avoid manual poll impl for accounts events 1944

- fix encoding newlines in param as a preparation for storing quotes 1945

- fix: internal and ffi error handling 1967 1966 1959 1911 1916 1917 1915

- fix ci 1928 1931 1932 1933 1934 1943

- update provider-database 1940 2005 2006

- update dependencies 1919 1908 1950 1963 1996 2010 2013

- breaking change: `dc_configure()` report errors in
`DC_EVENT_CONFIGURE_PROGRESS`: capturing error events is no longer working
1886 1905

- breaking change: removed `DC_LP_{IMAP|SMTP}_SOCKET*` from `server_flags`;
added `mail_security` and `send_security` using `DC_SOCKET` enum 1835

- parse multiple servers in Mozilla autoconfig 1860

- try multiple servers for each protocol 1871

- do IMAP and SMTP configuration in parallel 1891

- configuration cleanup and speedup 1858 1875 1889 1904 1906

- secure-join cleanup, testing, fixing 1876 1877 1887 1888 1896 1899 1900

- do not reset peerstate on encrypted messages,
ignore reordered autocrypt headers 1885 1890

- always sort message replies after parent message 1852

- add an index to significantly speed up `get_fresh_msg_cnt()` 1881

- improve mimetype guessing for PDF and many other formats 1857 1861

- improve accepting invalid html 1851

- improve tests, cleanup and ci 1850 1856 1859 1861 1884 1894 1895

- tweak HELO command 1908

- make `dc_accounts_get_all()` return accounts sorted 1909

- fix KML coordinates precision used for location streaming 1872

- fix cancelling import/export 1855

- add `dc_accounts_t` account manager object and related api functions 1784

- add capability to import backups as .tar files,
which will become the default in a subsequent release 1749

- try various server domains on configuration 1780 1838

- recognize .tgs files as stickers 1826

- remove X-Mailer debug header 1819

- improve guessing message types from extension 1818

- fix showing unprotected subjects in encrypted messages 1822

- fix threading in interaction with non-delta-clients 1843

- fix handling if encryption degrades 1829

- fix webrtc-servers names set by the user 1831

- update provider database 1828

- update async-imap to fix Oauth2 1837

- optimize jpeg assets with trimage 1840

- add tests and documentations 1809 1820

- fix peerstate issues 1800 1805

- fix a crash related to muted chats 1803

- fix incorrect dimensions sometimes reported for images 1806

- fixed `dc_chat_get_remaining_mute_duration` function 1807

- handle empty tags (e.g. `<br/>`) in HTML mails 1810

- always translate the message about disappearing messages timer change 1813

- improve footer detection in plain text email 1812

- update device chat icon to fix warnings in iOS logs 1802

- fix deletion of multiple messages 1795

- improve using own jitsi-servers 1785

- fix smtp-timeout tweaks for larger mails 1797

- more bug fixes and updates 1794 1792 1789 1787