diff --git a/README.md b/README.md
index 310194e7..c07deea0 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,52 @@
 
 Half-Life SDK for GoldSource & Xash3D with some bugfixes.
 
+<details><summary>Changelog</summary>
+<p>
+
+- Fixed an occasional bug when houndeyes stuck unable to do anything. Technical detail: now monster's `Activity` is set before the call to `SetYawSpeed`. [Patch](https://github.com/FWGS/hlsdk-portable/commit/467899b99aa225a95d90222137f18c141c929c86)
+- Monsters now play idle sounds as it's supposed by the code. Technical detail: the problem was a check for a wrong variable. [Patch](https://github.com/FWGS/hlsdk-portable/commit/9fc712da019a1ca646171e912209a993e7c43976)
+- Fixed a bug that caused talk monsters (scientists and security guards) to face a wrong direction during scripted sequence sometimes. [Patch](https://github.com/FWGS/hlsdk-portable/commit/3e2808de62e479e83068c075cb88b4f177f9acc7)
+- Fixed squad member removal. This bug affected houndeye attacks as their attack depends on percieved number of squad members. [Patch](https://github.com/FWGS/hlsdk-portable/commit/b4502f71336a08f3f2c72b7b061b2838a149a11b)
+- Scientists now react to smells. [Patch](https://github.com/FWGS/hlsdk-portable/commit/2de4e7ab003d5b1674d12525f5aefb1e57a49fa3)
+- Tau-cannon (gauss) plays idle animations.
+- Tau-cannon (gauss) beam color depends on the charge as it was before the prediction code was introduced in Half-Life. [Patch](https://github.com/FWGS/hlsdk-portable/commit/0a29ec49c8183ebb8da22a6d2ef395eae9c3dffe)
+- Brought back gluon flare in singleplayer.
+- Hand grenades don't stay primed after holster, preventing detonation after weapon switch. [Patch](https://github.com/FWGS/hlsdk-portable/commit/6e1059026faa90c5bfe5e3b3f4f58fde398d4524)
+- Fixed flashlight battery appearing as depleted on restore.
+- Fixed a potential overflow when reading sentences.txt. [Patch](https://github.com/FWGS/hlsdk-xash3d/commit/cb51d2aa179f1eb622e08c1c07b053ccd49e40a5)
+- Fixed beam attachment invalidated on restore (that led to visual bugs). [Patch](https://github.com/FWGS/hlsdk-xash3d/commit/74b5543c83c5cdcb88e9254bacab08bc63c4c896)
+- Fixed alien controllers facing wrong direction in non-combat state. [Patch](https://github.com/FWGS/hlsdk-portable/commit/e51878c45b618f9b3920b46357545cbb47befeda)
+- Fixed weapon deploy animations not playing sometimes on fast switching between weapons. [Patch](https://github.com/FWGS/hlsdk-portable/commit/ed676a5413c2d26b2982e5b014e0731f0eda6a0d) [Patch2](https://github.com/FWGS/hlsdk-portable/commit/4053dca7a9cf999391cbd77224144da207e4540b)
+- Fixed tripmine sometimes having wrong body on pickup [Patch](https://github.com/FWGS/hlsdk-portable/commit/abf08e4520e3b6cd12a40f269f4a256cf8496227)
+
+Bugfix-related macros that can be enabled during the compilation:
+
+- **CROWBAR_DELAY_FIX** fixes a bug when crowbar has a longer delay after the first hit.
+- **CROWBAR_FIX_RAPID_CROWBAR** fixes a "rapid crowbar" bug when hitting corpses of killed monsters.
+- **GAUSS_OVERCHARGE_FIX** fixes tau-cannon (gauss) charge sound not stopping after the overcharge.
+- **CROWBAR_IDLE_ANIM** makes crowbar play idle animations.
+- **TRIPMINE_BEAM_DUPLICATION_FIX** fixes tripmine's beam duplication on level transition.
+- **HANDGRENADE_DEPLOY_FIX** makes handgrenade play draw animation after finishing a throw.
+- **WEAPONS_ANIMATION_TIMES_FIX** fixes deploy and idle animation times of some weapons.
+
+Bugfix-related server cvars:
+
+- **satchelfix**: if set to 1, doors won't get blocked by satchels. Fixes an infamous exploit on `crossfire` map.
+- **explosionfix**: if set to 1, explosion damage won't propagate through thin bruses.
+- **selfgauss**: if set to 0, players won't hurt themselves with secondary attack when shooting thick brushes.
+
+*Note*: the macros and cvars were adjusted in [hlfixed](https://github.com/FWGS/hlsdk-portable/tree/hlfixed) branch. The bugfix macros are kept turned off in master branch to maintain the compatibility with vanilla servers and clients.
+
+Other server cvars:
+
+- **mp_bhopcap**: if set to 1, enable bunny-hop.
+- **chargerfix**: if set to 1, wall-mounted health and battery chargers will play reject sounds if player has the full health or armor.
+- **corpsephysics**: if set to 1, corpses of killed monsters will fly a bit from an impact. It's a cut feature from Half-Life.
+
+</p>
+</details>
+
 # Obtaining source code
 
 Either clone the repository via [git](`https://git-scm.com/downloads`) or just download ZIP via **Code** button on github. The first option is more preferable as it also allows you to search through the repo history, switch between branches and clone the vgui submodule.
diff --git a/dlls/player.cpp b/dlls/player.cpp
index f113fdff..6091017c 100644
--- a/dlls/player.cpp
+++ b/dlls/player.cpp
@@ -3095,15 +3095,9 @@ void CBasePlayer::SelectItem( const char *pstr )
 
 	if( m_pActiveItem )
 	{
-		CBasePlayerWeapon* weapon = (CBasePlayerWeapon*)(m_pActiveItem->GetWeaponPtr());
-		if (weapon)
-			weapon->m_ForceSendAnimations = true;
-
+		m_pActiveItem->pev->oldbuttons = 1;
 		m_pActiveItem->Deploy();
-
-		if (weapon)
-			weapon->m_ForceSendAnimations = false;
-
+		m_pActiveItem->pev->oldbuttons = 0;
 		m_pActiveItem->UpdateItemInfo();
 	}
 }
@@ -3130,14 +3124,9 @@ void CBasePlayer::SelectLastItem( void )
 	m_pActiveItem = m_pLastItem;
 	m_pLastItem = pTemp;
 
-	CBasePlayerWeapon* weapon = (CBasePlayerWeapon*)(m_pActiveItem->GetWeaponPtr());
-	if (weapon)
-		weapon->m_ForceSendAnimations = true;
-
+	m_pActiveItem->pev->oldbuttons = 1;
 	m_pActiveItem->Deploy();
-
-	if (weapon)
-		weapon->m_ForceSendAnimations = false;
+	m_pActiveItem->pev->oldbuttons = 0;
 
 	m_pActiveItem->UpdateItemInfo();
 }
@@ -4632,14 +4621,9 @@ BOOL CBasePlayer::SwitchWeapon( CBasePlayerItem *pWeapon )
 
 	m_pActiveItem = pWeapon;
 
-	CBasePlayerWeapon* weapon = (CBasePlayerWeapon*)(pWeapon->GetWeaponPtr());
-	if (weapon)
-		weapon->m_ForceSendAnimations = true;
-
+	pWeapon->pev->oldbuttons = 1;
 	pWeapon->Deploy();
-
-	if (weapon)
-		weapon->m_ForceSendAnimations = false;
+	pWeapon->pev->oldbuttons = 0;
 
 	return TRUE;
 }
diff --git a/dlls/weapons.cpp b/dlls/weapons.cpp
index 64941e8f..b91c723c 100644
--- a/dlls/weapons.cpp
+++ b/dlls/weapons.cpp
@@ -831,7 +831,7 @@ int CBasePlayerWeapon::UpdateClientData( CBasePlayer *pPlayer )
 void CBasePlayerWeapon::SendWeaponAnim( int iAnim, int skiplocal, int body )
 {
 	if( UseDecrement() )
-		skiplocal = !m_ForceSendAnimations;
+		skiplocal = !pev->oldbuttons;
 	else
 		skiplocal = 0;
 
diff --git a/dlls/weapons.h b/dlls/weapons.h
index 0d957ad5..46c852ea 100644
--- a/dlls/weapons.h
+++ b/dlls/weapons.h
@@ -359,9 +359,6 @@ public:
 	// hle time creep vars
 	float	m_flPrevPrimaryAttack;
 	float	m_flLastFireTime;
-
-	//Hack so deploy animations work when weapon prediction is enabled.
-	bool m_ForceSendAnimations;
 };
 
 class CBasePlayerAmmo : public CBaseEntity