17244: Add upgrade note re number formatting change.

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tom@curii.com>

diff --git a/doc/admin/upgrading.html.textile.liquid b/doc/admin/upgrading.html.textile.liquid
index 1e0e9a8337344d6e023e2ee7a127ce14e6b11d24..1534d1eb6e1ac12e7238ad812e88bf2f957624a0 100644 (file)
--- a/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@ -29,10 +29,14 @@ TODO: extract this information based on git commit messages and generate changel
 </notextile>
 
 
-h2(#main). development main (as of 2023-06-23)
+h2(#main). development main (as of 2023-08-15)
 
 "previous: Upgrading to 2.6.3":#v2_6_3
 
+h3. Crunchstat log format change
+
+The reported number of CPUs available in a container is now formatted in @crunchstat.txt@ log files and @crunchstat-summary@ text reports as a floating-point number rather than an integer (@2.00 cpus@ rather than @2 cpus@). Programs that parse these files may need to be updated accordingly.
+
 h3. Multi-node installer's domain name configuration changes
 
 The @domain_name@ variable at @terraform/vpc/terraform.tfvars@ and @DOMAIN@ variable at @local.params@ changed their meaning. In previous versions they were used in combination with @cluster_name@ and @CLUSTER@ to build the cluster's domain name (e.g.: @cluster_name@.@domain_name@). To allow the use of any arbitrary cluster domain, now we don't enforce using the cluster prefix as part of the domain, so @domain_name@ and @DOMAIN@ need to hold the entire domain for the given cluster.