base::lambda -> Fn (type alias for std::function).
base::lambda_once -> FnMut (type alias for base::unique_function).
base::lambda_guarded -> crl::guard.
base::lambda_call_type_t -> crl::deduced_call_type.
Now base::lambda can be copied and can wrap any immutable lambda.
For mutable lambdas there is base::lambda_once (which you're
supposed to call only once to pass data through lambda captures,
for example by using std::unique_ptr). Generally base::lambda is
passed by value and base::lambda_once is passed by rvalue reference.
Many minor design improvements in the new profiles.
New drafts design in the dialogs list: no icon, red badge.
Verified checkbox added to the new profile implementation.
Drafts saving to cloud is delayed for 1 second when switching chats.
Before quitting the app makes an attempt to save drafts (timeout 1.5s).
John Preston