YITH WooCommerce Request a Quote Premium 4.28.0

Fix: Fixed issue to show button on out of stock product.

New: Support for WooCommerce 3.9
Update: Italian language
Update: Plugin Framework
Fix: Fixed issue with customer email subject not changing
Fix: Fixed placeholders in the email
Fix: Fixed German translation
Fix: Fixed issue with mixed languages in the pdf table when using with WPML
Fix: Fixed WPML & Contact Form 7

Fix: Fatal Error with WooCommerce Multilingual 4.7.5