<ChangeLog>
nginx modules:
*) Bugfix: removed extra VM creation per server.
Previously, when js_import was declared in http or stream blocks,
an extra copy of the VM instance was created for each server
block. This was not needed and consumed a lot of memory for
configurations with many server blocks.
This issue was introduced in 9b674412 (0.8.6) and was partially
fixed for location blocks only in 685b64f0 (0.8.7).
Core:
*) Feature: added fs module for QuickJS engine.
</ChangeLog>
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