Protocol numbers

Hedgewars uses protocol numbers to encode different Hedgewars versions. The protocol number is mainly used on the server. It is important because players have to be on the same version to play together. The protocol number also used in the file name of demos (e.g. “DemoName.57.hwd”).

In Hedgewars, all versions without a “-dev” are called “stable” releases. These are the releases you find on the official Download page. Note that for some releases, the protocol number is not increased. This is the case for backwards-compatible bugfix releases. Thus, protocol number 55 is valid for 0.9.24 and 0.9.24.1.

A “-dev” in the version number means it is a version in development. This is not really a specific version, more like a shorthand. A version X.Y.Z-dev means that it could be a build of any commit after the previous stable relese but before the next stable release X.Y.Z.

E.g. the development version before 0.9.24 is 0.9.24-dev.

Since 0.9.25-dev, you can run “ hwengine --protocol ” in the commandline to get the current protocol number of your installed Hedgewars.

List of protocol numbers

Protocol number	Version
60	1.0.1-dev
59	1.0.0
58	1.0.0-dev
57	0.9.25
56	0.9.25-dev
55	0.9.24
54	0.9.24-dev
53	0.9.23
52	0.9.23-dev
51	0.9.22
50	0.9.22-dev
49	0.9.21
48	0.9.21-dev
47	0.9.20
46	0.9.20-dev
45	0.9.19
44	0.9.19-dev
43	0.9.18
42	0.9.18-dev
41	0.9.17
40	0.9.17-dev
39	0.9.16
38	0.9.16-dev
37	0.9.15
35	0.9.14.1
34	0.9.15-dev
33	0.9.14
32	0.9.14-dev
31	0.9.13
30	0.9.13-dev
29	0.9.12
28	0.9.12-dev
27	0.9.11
26	0.9.11-dev
25	0.9.10
24	0.9.10-dev
23	0.9.9
22	0.9.9-dev
21	0.9.8
20	0.9.8-dev
19	0.9.7
17	0.9.7-dev

Source

For an up-to-date version of the list, see https://hg.hedgewars.org/hedgewars/file/default/gameServer/Utils.hs and look for the function protoNumber2ver .