Conversation
The default AWS S3 URLs only support IPv4, whereas the dual-stack URLs support both IPv4 and IPv6: https://docs.aws.amazon.com/AmazonS3/latest/API/ipv6-access.html https://docs.aws.amazon.com/AmazonS3/latest/API/dual-stack-endpoints.html By switching to the dual-stack URLs, it means systems that support IPv6 will now use it instead of IPv4, which is helpful in IPv6 environments where IPv4 traffic has to fall back to being routed via NAT gateways (which has performance and ingress cost implications). See also: https://salesforce-internal.slack.com/archives/C01R6FJ738U/p1770827176094169 GUS-W-21348359.
beanieboi
approved these changes
Feb 24, 2026
Merged
edmorley
added a commit
that referenced
this pull request
Feb 26, 2026
To pick up #144. Signed-off-by: Ed Morley <501702+edmorley@users.noreply.github.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The default AWS S3 URLs only support IPv4, whereas the dual-stack URLs support both IPv4 and IPv6:
https://docs.aws.amazon.com/AmazonS3/latest/API/ipv6-access.html
https://docs.aws.amazon.com/AmazonS3/latest/API/dual-stack-endpoints.html
By switching to the dual-stack URLs, it means systems that support IPv6 will now use it instead of IPv4, which is helpful in IPv6 environments where IPv4 traffic has to fall back to being routed via NAT gateways (which has performance and ingress cost implications).
See also:
https://salesforce-internal.slack.com/archives/C01R6FJ738U/p1770827176094169
GUS-W-21348359.