Final answer:
The release of Santa Anna in 1836 did not lead to better relations with Mexico. Tensions between Mexico and Texas continued, particularly over the border dispute.
Step-by-step explanation:
After the Texas Revolution and the Battle of San Jacinto, General Santa Anna was forced to sign the Treaty of Velasco, which recognized the independence of the Lone Star Republic. However, there were doubts about the validity of the treaty, and Santa Anna himself later repudiated it. This led to continued tensions between Mexico and Texas, with the border dispute being a major point of contention.