A number of EARN sites have asked me for a list of reasons for going to 1.6 which can be explained to a manager with little knowledge of the "EARN arena" (such managers are, of course, enclined to act as per the official recommendation of the EARN Executive Committee). First I would like to repeat that I am by no means going to start an "advertisement" programme to get EARN sites to run 1.6, hand out (electronic) tracts or shiny posters to EARN site directors, or anything like that. I believe of course that it is better to run 1.6 than 1.5o, otherwise I would not have gone to the pain of making it available to EARN, but if a site doesn't want it I'm very happy with it; I'm just trying to help sites which do want it but have trouble justifying it on not-too-technical grounds. Basically, what you gain with release 1.6 is the following: - Full support of VM/XA and CMS 5.5 (in 370 mode), which is not available in 1.5o. If relevant to your installation, this is a very strong argument. - Three infinite-loop generating bugs have been fixed in release 1.6 (one in 1.6a, two in 1.6c). The one fixed in 1.6a is a major one, which is presently hitting LISTSERV@CEARN about twice a week. This can save a lot of CPU time, in addition to the increase in reliability. - Performance improvement through suppression of SENT FILE messages and factor of 4 improvement to LSVBITFD; this is unlikely to have any significant impact on non-backbone or low-volume sites, but for a small dedicated machine it can be a strong argument. - Generalized use of BSMTP for domain-address recipients, along with batching of recipients in outbound DISTRIBUTE jobs, can dramatically decrease the load on local gateways. This will decrease the load on the network anyway, but I suppose the said manager will consider it about as important an issue as the colour of the first pair of socks his mother used on him when he was a baby. - General statistics on the usage of LISTSERV become available through the SHOW command, and can be collected relatively easily by a server or simple local change. This allows the site to monitor the activity of the usage of the server, etc. Some shops like that kind of stuff a lot. - The UDD is available in release 1.6. Since the doc is not written and some of the netwide functions are not finished, it may not be a very good argument. - If you have a lot of lists, the improved handling of rejected mail (which saves a good amount of postmaster time) and moderated lists (saves moderator time, usually less precious as these tend to be professors or students not paid by the computing centre) may be worth mentioning. That's all I could of right off the top of my hat. Of course, saying that 138 sites are running 1.6 and 50 have 1.5o (out of which a dozen have already indicated that they want to get 1.6) may help. Eric