/ doc / release-notes / release-notes-0.10.2.md
release-notes-0.10.2.md
 1  Bitcoin Core version 0.10.2 is now available from:
 2  
 3    <https://bitcoin.org/bin/bitcoin-core-0.10.2/>
 4  
 5  This is a new minor version release, bringing minor bug fixes and translation 
 6  updates. It is recommended to upgrade to this version.
 7  
 8  Please report bugs using the issue tracker at github:
 9  
10    <https://github.com/bitcoin/bitcoin/issues>
11  
12  Upgrading and downgrading
13  =========================
14  
15  How to Upgrade
16  --------------
17  
18  If you are running an older version, shut it down. Wait until it has completely
19  shut down (which might take a few minutes for older versions), then run the
20  installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or
21  bitcoind/bitcoin-qt (on Linux).
22  
23  Downgrade warning
24  ------------------
25  
26  Because release 0.10.0 and later makes use of headers-first synchronization and
27  parallel block download (see further), the block files and databases are not
28  backwards-compatible with pre-0.10 versions of Bitcoin Core or other software:
29  
30  * Blocks will be stored on disk out of order (in the order they are
31  received, really), which makes it incompatible with some tools or
32  other programs. Reindexing using earlier versions will also not work
33  anymore as a result of this.
34  
35  * The block index database will now hold headers for which no block is
36  stored on disk, which earlier versions won't support.
37  
38  If you want to be able to downgrade smoothly, make a backup of your entire data
39  directory. Without this your node will need start syncing (or importing from
40  bootstrap.dat) anew afterwards. It is possible that the data from a completely
41  synchronised 0.10 node may be usable in older versions as-is, but this is not
42  supported and may break as soon as the older version attempts to reindex.
43  
44  This does not affect wallet forward or backward compatibility.
45  
46  Notable changes
47  ===============
48  
49  This fixes a serious problem on Windows with data directories that have non-ASCII
50  characters (https://github.com/bitcoin/bitcoin/issues/6078).
51  
52  For other platforms there are no notable changes.
53  
54  For the notable changes in 0.10, refer to the release notes
55  at https://github.com/bitcoin/bitcoin/blob/v0.10.0/doc/release-notes.md
56  
57  0.10.2 Change log
58  =================
59  
60  Detailed release notes follow. This overview includes changes that affect external
61  behavior, not code moves, refactors or string updates.
62  
63  Wallet:
64  - `824c011` fix boost::get usage with boost 1.58
65  
66  Miscellaneous:
67  - `da65606` Avoid crash on start in TestBlockValidity with gen=1.
68  - `424ae66` don't imbue boost::filesystem::path with locale "C" on windows (fixes #6078)
69  
70  Credits
71  =======
72  
73  Thanks to everyone who directly contributed to this release:
74  
75  - Cory Fields
76  - Gregory Maxwell
77  - Jonas Schnelli
78  - Wladimir J. van der Laan
79  
80  And all those who contributed additional code review and/or security research:
81  
82  - dexX7
83  - Pieter Wuille
84  - vayvanne
85  
86  As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).