The Kunena team has announce the arrival of Kunena 7.0.4 [K 7.0.4] in stable which is now available for download as a native Joomla extension for J! 5.4.x/6.0.x. This version addresses most of the issues that were discovered in K 6.2 / K 6.3 / K 6.4 and issues discovered during the last development stages of K 7.0
Important
text space in subject line is too short - where to change this?
Like many of these "how can I change something" questions, let's start by looking at the Kunena configuration parameters. Use Components » Kunena Forum » Kunena Configuration:
Frontend - Various length settings:
Max. Subject length = 50
Maximum Subject line length. The maximum number supported by the database is 255 characters. If your site is configured to use multi-byte character sets like Unicode, UTF-8 or non-ISO-8599-x, make the maximum smaller using this forumula:
round_down(255/(maximum character set byte size per character))
Example: for UTF-8, for which the max. character bite syze per character is 4 bytes: 255/4=63.
There's your answer. There is a limit on the maximum subject line length!