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net: CAddress & CAddrMan: (un)serialize as ADDRv2

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Change the serialization of `CAddrMan` to serialize its addresses
in ADDRv2/BIP155 format by default. Introduce a new `CAddrMan` format
version (3).

Add support for ADDRv2 format in `CAddress` (un)serialization.

Co-authored-by: Carl Dong <contact@carldong.me>
This commit is contained in:
Vasil Dimov
2020-05-19 17:39:05 +02:00
parent 1d3ec2a1fd
commit 201a4596d9
5 changed files with 170 additions and 16 deletions
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8
doc/release-notes.md
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@@ -60,6 +60,14 @@ From Bitcoin Core 0.20.0 onwards, macOS versions earlier than 10.12 are no
longer supported. Additionally, Bitcoin Core does not yet change appearance
when macOS "dark mode" is activated.
The node's known peers are persisted to disk in a file called `peers.dat`. The
format of this file has been changed in a backwards-incompatible way in order to
accommodate the storage of Tor v3 and other BIP155 addresses. This means that if
the file is modified by 0.21.0 or newer then older versions will not be able to
read it. Those old versions, in the event of a downgrade, will log an error
message that deserialization has failed and will continue normal operation
as if the file was missing, creating a new empty one. (#19954)
Notable changes
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