From the Herald, they summarize it best:

Patch 1.101a is now live on Pendragon for your testing enjoyment. Please be sure to check out the full notes on the Pendragon Patch Note page! Highlights of 1.101a include:

• Classic Dragon changes
• SI Dragon redesign
• SI Epic Dungeon BP changes

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Dark Age of Camelot
Test Version 1.101a Release Notes
General Changes
February 16, 2010

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New Things and Bug Fixes

• Cure Nearsight and Purify Vision: These spells have been changed and will now additionally cure Silence from the target. As such, these spells have been renamed Cure Senses and Purify Senses.
• Certain zones are now flagged as Epic Zones. These zones now relocate anyone logged out for more than 30 minutes to a safe spot typically located at the start of the zone, except for the main Realm Dragon zones. The locations for these Epic Zones place you safely outside the Faction towns, near the bindstones. The following zones are now considered Epic Zones:
  • Dartmoor
  • Avalon City (and the Crystal Cave)
  • Caer Sidi
  • Malmohus
  • Trollheim
  • Tuscaran Glacier
  • Sheeroe Hills
  • Fomor
  • Galladoria
  • Sobekite Eternal
  • Temple of Twilight
  • Halls of Ma’ati
  • Deep Volcanus
  • City of Aerus
• Spells, including DoT’s, now properly trigger monster defensive procs in PvE. Many epic encounters have had their defensive procs rebalanced in terms of frequency and duration to compensate for this fix.

Class Changes and Fixes

Druids

• The Ablative in the Nature Specialization Line has been changed as follows:
  • Level 10 – Barrier of Cedar – 3s cast / 15s duration / 5s recast – 2000 range – 100 damage (50% per hit) – 6 power
  • Level 20 – Barrier of Ash – 2.8s cast / 15s duration / 5s recast – 2000 range – 225 damage (50% per hit) – 12 power
  • Level 30 – Barrier of Oak – 2.7s cast / 15s duration / 5s recast – 2000 range – 350 damage (50% per hit) – 18 power
  • Level 40 – Barrier of Blackwood – 2.6s cast / 15s duration / 5s recast – 2000 range – 500 damage (75% per hit) – 24 power
  • Level 50 – Barrier of Ironwood – 2.5s cast / 15s duration / 5s recast – 2000 range – 675 damage (75% per hit) – 30 power

Camelot Classic World Notes

Albion Monsters

• Golestandt: The damage values of this monster have been reduced. The main breath weapon attack now gives an immunity timer that protects against further resistance debuffs. The primary special attacks have had their reuse timer increased from 2 minutes to 5 minutes. New mechanics have been put into place to target inattentive players.

Midgard Monsters

• Gjalpinulva: The damage values of this monster have been reduced. The main breath weapon attack now gives an immunity timer that protects against further resistance debuffs. The primary special attacks have had their reuse timer increased from 2 minutes to 5 minutes. New mechanics have been put into place to target inattentive players.

Hibernia Monsters

• Cuuldurach: The damage values of this monster have been reduced. The main breath weapon attack now gives an immunity timer that protects against further resistance debuffs. The primary special attacks have had their reuse timer increased from 2 minutes to 5 minutes. New mechanics have been put into place to target inattentive players.

Item Notes

• Adolescent Dragons in the Epic Dragon Zones no longer drop Realm Dragon treasure. They continue to drop high end accessory items and Scales. Adolescent Dragons in New Frontiers still drop Realm Dragon treasure.

Shrouded Isles World Notes

Albion Monsters

• Xanxicar: This monster is now greatly reduced in level but has been given extra hit points, defenses and a few more tricks and abilities. New mechanics have been put into place to target inattentive players.
• Monsters in Avalon City now have a wider variety of styles and spells to use.

Midgard Monsters

• Nosdoden: This monster is now greatly reduced in level but has been given extra hit points, defenses and a few more tricks and abilities. New mechanics have been put into place to target inattentive players.
• Monsters in Trollheim now have a wider variety of styles and spells to use.

Hibernia Monsters

• Myrddraxis: This monster is now greatly reduced in level but has been given extra hit points, defenses and a few more tricks and abilities. New mechanics have been put into place to target inattentive players.
• Monsters in Fomor now have a wider variety of styles and spells to use.

Item Notes

• Xanxicar, Nosdoden and Myrddraxis: These monsters will now drop Realm Dragon treasure and have had their Dragon Scale drops increased. The Realm Dragon treasure is temporary until new handmade items can be implemented. The amount of Scales dropped by these dragons has been increased.
• Apocalypse, King Tuscar, Queen Kula and Olcasgean: These monsters will now drop many more breastplates and other recently upgraded treasure.
• The secondary bosses such as Hurika, Jailer Vifil, the Horsemen and the Primals in the Epic Dungeons have been given greatly increased chances to drop more breastplates and to drop them more often.

Trials of Atlantis World Notes

Monsters

• Draco: This monster is now greatly reduced in level but has been given extra hit points, defenses and a few more tricks and abilities. New mechanics have been put into place to target inattentive players. Draco’s Black Hole attack no longer causes players to float in space and be randomly jettisoned into different zones. The attack now has different properties.
• Typhon: This monster will no longer stay within the lava for the duration of the encounter. New mechanics have been put in place to allow Typhon to travel on land, negating issues where his treasure could possibly drop in lava. Typhon now drops more Atlantean Glass due to these changes.

Item Notes

• Draco: This monster will now drop Astral Weapons in addition to the Astral Armor. Draco now drops Realm Dragon treasure appropriate to the Realm defeating the dragon.
• Astral Weapons and Armor have been increased in utility. The changes are retroactive. A partial list of changes include:
  • Astral Weapons have the same to hit bonus that Artifacts, Champion and Slayer weapons have.
  • Many class restrictions placed on stats and other bonuses have been removed.
  • Breastplates are the only item that needs to be worn after summoning the Astral Cloaks. Weapon, Leggings and Breastplate must still be worn to summon the Cloaks.
  • Many existing procs have been enhanced or altered for better performance in RvR. Example: Skin of Iron now behaves as a persistent effect while Astral Leggings of Fortification are worn.
  • Most Astral Weapons and Armor have been given a secondary charge or proc.

Edit: Please note, the changes to the astral weapons and armor are a work in progress, changes may be made before they go live, based on feedback. Keep posted here for any updates.

Labyrinth World Notes

Monsters

• Zhulrathuul: This monster is now defended properly by his golems and has been given a few more tricks and abilities.  New mechanics have been put into place to target inattentive players.

Items

• Zhulrathuul: This monster will now drop Realm Dragon treasure appropriate to the Realm defeating the dragon. Zhulrathuul now has a chance to drop the Demon Fang Necklace of the Dracolich each time he is defeated. The One Time Drop quest is still in place for those defeating him for the first time. The amount of Scales that Zhulrathuul drop has been increased.