v0.4.4

Added:

• SCertifiedBTreeSet collection
• get_random_key() method on all btree-based collections
• DoubleEndedIterator for all btree-based iterators

Fixed:

• a bug with SCertifiedBTreeMap removals
• a bug with btree-based iterators missing last item

v0.4.1

It is safe to use now

v0.2.3

• SBTreeMap and SBTreeSet
• Speedy instead of Candid (+ SPrincipal)
• on_low_stable_memory() callback
• performance improvement

v0.1.0

• SHashSet collection on top of SHashMap
• SBinaryHeap collection on top of SVec

v0.0.2

• improved safeness, readability and usability of stable variables with s! macro;
• improved usability of routine functions with stable_memory_init(), stable_memory_pre_upgrade() and stable_memory_post_upgrade().