<s>
K	B-Language
Desktop	I-Language
Environment	I-Language
2	I-Language
was	O
the	O
second	O
series	O
of	O
releases	O
of	O
the	O
K	B-Language
Desktop	I-Language
Environment	I-Language
.	O
</s>
<s>
K	B-Language
Desktop	I-Language
Environment	I-Language
2	I-Language
introduced	O
significant	O
technological	O
improvements	O
compared	O
to	O
its	O
predecessor	O
.	O
</s>
<s>
DCOP	B-Language
(	O
Desktop	B-Language
COmmunication	I-Language
Protocol	I-Language
)	O
,	O
a	O
client-to-client	O
communications	O
protocol	O
intermediated	O
by	O
a	O
server	O
over	O
the	O
standard	O
X11	B-Operating_System
ICE	O
library	O
.	O
</s>
<s>
KIO	B-Language
,	O
an	O
application	O
I/O	B-General_Concept
library	O
.	O
</s>
<s>
It	O
is	O
network	O
transparent	O
and	O
can	O
access	O
HTTP	B-Protocol
,	O
FTP	B-Protocol
,	O
PoP	O
,	O
IMAP	B-Protocol
,	O
NFS	B-Protocol
,	O
SMB	B-Operating_System
,	O
LDAP	B-Protocol
and	O
local	O
files	O
.	O
</s>
<s>
Moreover	O
,	O
its	O
design	O
permits	O
developers	O
to	O
"	O
drop	O
in	O
"	O
additional	O
protocols	O
,	O
such	O
as	O
WebDAV	B-Protocol
,	O
which	O
will	O
then	O
automatically	O
be	O
available	O
to	O
all	O
KDE	B-Application
applications	O
.	O
</s>
<s>
KIO	B-Language
can	O
also	O
locate	O
handlers	O
for	O
specified	O
MIME	B-Application
types	I-Application
;	O
these	O
handlers	O
can	O
then	O
be	O
embedded	O
within	O
the	O
requesting	O
application	O
using	O
the	O
KParts	B-Language
technology	O
.	O
</s>
<s>
KParts	B-Language
,	O
a	O
component	B-Application
object	I-Application
model	I-Application
,	O
allows	O
an	O
application	O
to	O
embed	O
another	O
within	O
itself	O
.	O
</s>
<s>
KParts	B-Language
can	O
also	O
interface	O
with	O
the	O
KIO	B-Language
trader	O
to	O
locate	O
available	O
handlers	O
for	O
specific	O
MIME	B-Application
types	I-Application
or	O
services/protocols	O
.	O
</s>
<s>
KHTML	B-Language
,	O
an	O
HTML	B-Language
4.0	I-Language
compliant	O
rendering	O
and	O
drawing	O
engine	O
.	O
</s>
<s>
It	O
supports	O
many	O
Internet	O
technologies	O
,	O
including	O
JavaScript	B-Language
,	O
Java	B-Language
,	O
HTML	B-Language
4.0	I-Language
,	O
CSS	B-Language
2	I-Language
,	O
and	O
SSL	B-Protocol
for	O
secure	O
communications	O
.	O
</s>
<s>
It	O
is	O
compatible	O
with	O
Netscape	O
plugins	O
such	O
as	O
Flash	B-Operating_System
.	O
</s>
<s>
KHTML	B-Language
also	O
has	O
the	O
capacity	O
to	O
embed	O
components	O
within	O
itself	O
using	O
the	O
KParts	B-Language
technology	O
.	O
</s>
<s>
Konqueror	B-Application
was	O
introduced	O
as	O
web	O
browser	O
,	O
file	O
manager	O
and	O
document	O
viewer	O
.	O
</s>
<s>
It	O
used	O
KHTML	B-Language
for	O
displaying	O
web	O
pages	O
.	O
</s>
<s>
K	B-Language
Desktop	I-Language
Environment	I-Language
2	I-Language
also	O
shipped	O
with	O
the	O
initial	O
release	O
of	O
the	O
KOffice	B-Language
suite	O
,	O
consisting	O
of	O
a	O
spreadsheet	O
application	O
(	O
KSpread	B-Language
)	O
,	O
a	O
vector	O
drawing	O
application	O
(	O
KIllustrator	B-Language
)	O
,	O
a	O
frame-based	O
word-processing	O
application	O
(	O
KWord	B-Protocol
)	O
,	O
a	O
presentation	O
program	O
(	O
KPresenter	B-Language
)	O
,	O
and	O
a	O
chart	O
and	O
diagram	O
application	O
(	O
KChart	O
)	O
.	O
</s>
<s>
Native	O
file	O
formats	O
were	O
XML-based	O
.	O
</s>
<s>
KOffice	B-Language
included	O
a	O
scripting	O
language	O
and	O
the	O
ability	O
to	O
embed	O
individual	O
components	O
within	O
each	O
other	O
using	O
KParts	B-Language
.	O
</s>
<s>
For	O
development	O
,	O
K	O
Desktop	O
Environment	O
2.1	O
was	O
bundled	O
with	O
KDevelop	B-Language
.	O
</s>
<s>
The	O
KDE	O
2.2	O
release	O
featured	O
up	O
to	O
a	O
50%	O
improvement	O
in	O
application	O
startup	O
time	O
on	O
Linux	O
systems	O
and	O
increased	O
stability	O
and	O
capabilities	O
for	O
HTML	B-Language
rendering	O
and	O
JavaScript	B-Language
.	O
</s>
<s>
A	O
number	O
of	O
new	O
plugins	O
were	O
included	O
in	O
Konqueror	B-Application
.	O
</s>
<s>
KMail	O
received	O
the	O
addition	O
of	O
IMAP	B-Protocol
support	O
(	O
including	O
SSL	B-Protocol
and	O
TLS	O
)	O
,	O
while	O
KOrganizer	O
got	O
native	O
iCalendar	O
support	O
.	O
</s>
<s>
After	O
celebrating	O
KDE	B-Application
’s	O
20th	O
birthday	O
with	O
a	O
re-release	O
of	O
KDesktop	O
Environment1.1.2	O
on	O
14	O
October	O
2016	O
,	O
KDE	B-Application
and	O
Fedora	O
contributor	O
Helio	O
Chissini	O
de	O
Castro	O
also	O
did	O
re-releases	O
of	O
Qt2	O
in	O
October	O
2017	O
and	O
KDELibs2.2.2	O
in	O
December	O
2017	O
.	O
</s>
