1.1 KiB
(note: this is a temporary file, to be added-to by anybody, and moved to release-notes at release time)
Notable changes
Reduce upload traffic
A major part of the outbound traffic is caused by serving historic blocks to other nodes in initial block download state.
It is now possible to reduce the total upload traffic via the -maxuploadtarget
parameter. This is not a hard limit but a threshold to minimize the outbound
traffic. When the limit is about to be reached, the uploaded data is cut by not
serving historic blocks (blocks older than one week).
Moreover, any SPV peer is disconnected when they request a filtered block.
This option can be specified in MiB per day and is turned off by default
(-maxuploadtarget=0).
The recommended minimum is 1152 * MAX_BLOCK_SIZE (currently 2304MB) per day.
Whitelisted peers will never be disconnected, although their traffic counts for calculating the target.
A more detailed documentation about keeping traffic low can be found in /doc/reducetraffic.md.