The "/timeline" page:

Query parameters:

a=TIMEORTAG
Show events after TIMEORTAG
b=TIMEORTAG
Show events before TIMEORTAG
c=TIMEORTAG
Show events that happen "circa" TIMEORTAG
cf=FILEHASH
Show events around the time of the first use of the file with FILEHASH
m=TIMEORTAG
Highlight the event at TIMEORTAG
n=COUNT
Maximum number of events. "all" for no limit
n1=COUNT
Same as "n" but doesn't set the display-preference cookie Use "n1=COUNT" for a one-time display change
p=CHECKIN
Parents and ancestors of CHECKIN
bt=PRIOR
... going back to PRIOR
d=CHECKIN
Children and descendants of CHECKIN
dp=CHECKIN
Same as 'd=CHECKIN&p=CHECKIN'
df=CHECKIN
Same as 'd=CHECKIN&n1=all&nd'. Mnemonic: "Derived From"
bt=CHECKIN
In conjunction with p=CX, this means show all ancestors of CX going back to the time of CHECKIN. All qualifying check-ins are shown unless there is also an n= or n1= query parameter.
t=TAG
Show only check-ins with the given TAG
r=TAG
Show check-ins related to TAG, equivalent to t=TAG&rel
rel
Show related check-ins as well as those matching t=TAG
mionly
Limit rel to show ancestors but not descendants
nowiki
Do not show wiki associated with branch or tag
ms=MATCHSTYLE
Set tag match style to EXACT, GLOB, LIKE, REGEXP
u=USER
Only show items associated with USER
y=TYPE
'ci', 'w', 't', 'n', 'e', 'f', or 'all'.
ss=VIEWSTYLE
c: "Compact", v: "Verbose", m: "Modern", j: "Columnar", x: "Classic".
advm
Use the "Advanced" or "Busy" menu design.
ng
No Graph.
ncp
Omit cherrypick merges
nd
Do not highlight the focus check-in
nsm
Omit the submenu
v
Show details of files changed
vfx
Show complete text of forum messages
f=CHECKIN
Show family (immediate parents and children) of CHECKIN
from=CHECKIN
Path from...
to=CHECKIN
... to this
shortest
... show only the shortest path
rel
... also show related checkins
uf=FILE_HASH
Show only check-ins that contain the given file version All qualifying check-ins are shown unless there is also an n= or n1= query parameter.
chng=GLOBLIST
Show only check-ins that involve changes to a file whose name matches one of the comma-separate GLOBLIST
brbg
Background color determined by branch name
ubg
Background color determined by user
deltabg
Background color red for delta manifests or green for baseline manifests
namechng
Show only check-ins that have filename changes
forks
Show only forks and their children
cherrypicks
Show all cherrypicks
ym=YYYY-MM
Show only events for the given year/month
yw=YYYY-WW
Show only events for the given week of the given year
yw=YYYY-MM-DD
Show events for the week that includes the given day
ymd=YYYY-MM-DD
Show only events on the given day. The use "ymd=now" to see all changes for the current week.
days=N
Show events over the previous N days
datefmt=N
Override the date format: 0=HH:MM, 1=HH:MM:SS, 2=YYYY-MM-DD HH:MM:SS, 3=YYMMDD HH:MM, and 4 means "off".
bisect
Show the check-ins that are in the current bisect
showid
Show RIDs
showsql
Show the SQL text

p= and d= can appear individually or together. If either p= or d= appear, then u=, y=, a=, and b= are ignored.

If both a= and b= appear then both upper and lower bounds are honored.

CHECKIN or TIMEORTAG can be a check-in hash prefix, or a tag, or the name of a branch.