Hi list,
As a consequence of my recent scrape of /geoserver/web pages, I thought I’d quickly parse the resulting pages and pull out the version number of the GeoServer deployments. Below is a breakdown of version numbers and the number ofdistinct hosts that have GeoServer deployed (there are 366 below, by no means a complete set). There were ~6 custom snapshots not represented here.
I figured this may be of interest/use to the devs/PSC in guiding maintenance plans etc. It definitely indicates people just load up their GeoServer and then forget about it, rarely upgrading even within a version (2.8 series best exemplifies this). 2.5 in particular seems to be very popular despite its age.
Copy and paste into your favourite spreadsheet for stats-related fun (I’ll leave it to someone else to do proper statsy stuff, maybe including dates of releases…).
I guess you could call this Open Source market research. 
Cheers,
Jonathan
2.0-SNAPSHOT, 1
2.0.1, 3
2.0.2, 6
2.0.3, 1
2.1-RC3, 1
2.1-SNAPSHOT, 6
2.1.0, 3
2.1.1, 3
2.1.2, 5
2.1.3, 16
2.1.4, 7
2.2-SNAPSHOT, 6
2.2, 4
2.2.1, 3
2.2.2, 3
2.2.3, 1
2.2.4, 2
2.2.5, 2
2.3-SNAPSHOT, 1
2.3.0, 3
2.3.1, 3
2.3.2, 5
2.3.3, 2
2.3.5, 3
2.4-SNAPSHOT, 7
2.4.0, 3
2.4.1, 5
2.4.2, 5
2.4.3, 1
2.4.4, 4
2.4.5, 3
2.4.6, 1
2.4.8, 1
2.5-SNAPSHOT, 10
2.5, 20
2.5.1, 12
2.5.2, 6
2.5.3, 1
2.5.4, 4
2.5.5, 1
2.5.5.1, 1
2.6-SNAPSHOT, 1
2.6.0, 5
2.6.1, 7
2.6.2, 4
2.6.4, 2
2.6.5, 2
2.7-SNAPSHOT, 1
2.7.0, 7
2.7.1, 17
2.7.1.1, 9
2.7.2, 12
2.7.3, 1
2.7.4, 6
2.7.5, 2
2.7.6, 1
2.8-RC1, 1
2.8-SNAPSHOT, 4
2.8.0, 8
2.8.1, 13
2.8.2, 13
2.8.3, 16
2.8.4, 5
2.8.5, 4
2.9-SNAPSHOT, 4
2.9.0, 7
2.9.1, 12
2.9.2, 1
2.9.3, 1
2.9.4, 1
2.10-SNAPSHOT, 1
2.10.0, 4
2.10.1, 12
2.10.2, 5
2.11.0, 2
