Known Bugs in 2.0.x

Confirmed bug reports and fixes for v2.0.0 will be posted here by the project maintainers.

As we find issues, we will fix them in Github for delivery in the next update to 2.0.0.

If you downloaded in the first few hours after the release (ie: before this post), the zip you got will mark a "new install" with the "alpha" designation.
This is harmless, but the zip has been updated so that new installs won't show this ambiguity.
Upgrades were not affected.

New Products page does not show new products no matter how Admin > Configuration > Maximum Values > "New Product Listing - Limited to ..." is set.

Fix:
https://github.com/zencart/zencart/pull/6399

In cart check $_SESSION['cart']->in_cart_check() fails to work.

Fix: https://github.com/zencart/zencart/pull/6407

If you have more than 20 coupons, clicking on a coupon on page 2 or beyond can cause a blank infoBox and the wrong coupons on the page.

Fix: https://github.com/zencart/zencart/pull/6438/files

All of the preceding bugs have been fixed in Zen Cart 2.0.1. See

https://www.zen-cart.com/showthread.php?230139-Zen-Cart-2-0-1-Released

Setting PayPal (any version) Debug Mode to "Log and Email" will cause issues if you are running PHP8+ and you have Email Admin Format set to HTML.

Workaround (for now): Set Debug Mode to "Log File."

Issue: https://github.com/zencart/zencart/issues/6547

Running zc_install to update Zen Cart 1.5.1 or earlier versions can cause failure

Jun 22 2024 16:23 -- upgradeException
ALTER TABLE admin CHANGE COLUMN last_login_ip last_login_ip varchar(45) NOT NULL default '';  Cannot CHANGE column COLUMN because it does not exist.  C:\xampp\htdocs\yfs\zc_install/sql/updates/mysql_upgrade_zencart_151.sql

Fix: https://github.com/zencart/zencart/pull/6551

In Zen Cart 2.0.0 and 2.0.1, the update to the project_version_history table may not work. If it fails, you'll see an upgrade log that looks like this:

[08-Apr-2024 06:15:40 UTC] MySQL error 1064 encountered during zc_install:
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
INSERT INTO zen_project_version_history (project_version_key, project_version_major, project_version_minor, project_version_patch, project_version_date_applied, project_version_comment)

If this happens, update the table in Admin > Tools > Install SQL Patches or phpMyAdmin. If you are using phpMyAdmin and your tables have a prefix, you will have to add the prefix to the SQL statements manually.

INSERT INTO project_version_history (project_version_key, project_version_major, project_version_minor, project_version_patch, project_version_date_applied, project_version_comment)
SELECT project_version_key, project_version_major, project_version_minor, project_version_patch1 as project_version_patch, project_version_date_applied, project_version_comment
FROM project_version;