Here the changelog details for CB Paid Subscriptions 4.5.2:
18 New Features:
8553 Mailer: Clarify triggering conditions labels Actions
8552 Mailers: Conditions based on values should allow payment basket substitutions Actions
8551 Mailer: make a mail condition dependent on the total amount of a payment basket (and any other basket characteristic) Actions
8550 Promotions: Make a discount/markup dependent on the total amount of a payment basket (and any other basket characteristic) Actions
8549 Mailer: Make a mailer dependent on the payment method and/or on the currency (or any other payment basket characteristic) Actions
8548 Add [PAYMENT_GATEWAY_ID] substitution to payment basket substitutions Actions
8547 Promotions: Make a discount/markup dependent on the payment method chosen and/or on the currency (or any other payment basket characteristic) Actions
8546 Promotions: Conditions based on values should allow payment basket substitutions Actions
8545 Promotions and Mailers: Add sub-menus for direct accesses to mailers and promotions settings, to promotion uses and to mailer automation settings for consistency with their dashboards Actions
8535 Paypal gateway: Workaround for a bug at Paypal.com side to display Thank you page after purchase instead of "INVALID" (when Paypal returns with PDT without POST despite rm=2 asking for it) Actions
8515 Promotions: Add a promotion-type "A percentage R on the item price P to which an amount A is first added/substracted (R*(P+A))" Actions
8514 Promotions and Taxes: Clarify kind of tax setting, showing the formula at begin Actions
8513 Add a tax-rate type "A percentage R on the item price P to which an amount A is first added/substracted (R*(P+A))" Actions
8511 Taxes: Add acceptation and description of negative values to the stepped taxes amount values Actions
8484 MySQL 8 support: Strict Mysql types Actions
8336 Joomla 4.0 compatibility Actions
8107 Promotions and Mailers: Applicable to enabled/blocked users default doesn't make sense Actions
4564 Allow mailer To: address to be a parameter
3 Bugs fixed
8528 Stripe: bonus time for calendar durations does not work with recurring subscriptions Actions
8517 More PHP 8.0 compatibility improvements Actions
8485 Tax rule "A fixed amount added/substracted from the item price, plus a percentage" does not function correctly Actions
Detailed changelog is here