Changes

There are as many Upanishads to each Veda as there are Sakhas, branches or recensions, i.e., 21, 109, 1000 and 50 respectively to the four Vedas, the [[Rigveda|Rig-Veda]] the [[Yajurveda|Yajur Veda]], the [[Samaveda (सामवेद)|Sama Veda]] and the [[Atharvaveda|Atharva-Veda]].<ref name=":022" />

There are as many Upanishads to each Veda as there are Sakhas, branches or recensions, i.e., 21, 109, 1000 and 50 respectively to the four Vedas, the [[Rigveda|Rig-Veda]] the [[Yajurveda|Yajur Veda]], the [[Samaveda (सामवेद)|Sama Veda]] and the [[Atharvaveda|Atharva-Veda]].<ref name=":022" />

More than 200 Upanishads are known, of which the first dozen or so are the oldest and most important and are referred to as the principal or main (''[[mukhya]]'') Upanishads from the Vedantic point of view. The ''mukhya'' Upanishads are found mostly in the concluding part of the ''[[Brahmana (ब्राह्मणम्)|Brahmanas]]'' and ''[[Aranyaka (आरण्यकम्)|Aranyakas]]'' and were, for centuries, memorized by each generation and passed down verbally. Muktikopanishad and Narayanopanishad lists 108 Upanishads and of them Dasa-Upanishads are <blockquote>ईश-केन-कठ-प्रश्न-मुण्ड-माण्डूक्य-तित्तिरः । एेतरेयं च छान्दोग्यं बृहदारण्यकं तथा ॥ </blockquote><blockquote>''īśa-kēna-kaṭha-praśna-muṇḍa-māṇḍūkya-tittiraḥ । ēētarēyaṁ ca chāndōgyaṁ br̥hadāraṇyakaṁ tathā ॥''</blockquote>

More than 200 Upanishads are known, of which the first dozen or so are the oldest and most important and are referred to as the principal or main (''[[mukhya]]'') Upanishads from the Vedantic point of view. The ''mukhya'' Upanishads are found mostly in the concluding part of the ''[[Brahmana (ब्राह्मणम्)|Brahmanas]]'' and ''[[Aranyaka (आरण्यकम्)|Aranyakas]]'' and were, for centuries, memorized by each generation and passed down verbally. Muktikopanishad and Narayanopanishad lists 108 Upanishads and of them Dasa-Upanishads are <blockquote>ईश-केन-कठ-प्रश्न-मुण्ड-माण्डूक्य-तित्तिरः । एेतरेयं च छान्दोग्यं बृहदारण्यकं तथा ॥ </blockquote><blockquote>īśa-kēna-kaṭha-praśna-muṇḍa-māṇḍūkya-tittiraḥ । ēētarēyaṁ ca chāndōgyaṁ br̥hadāraṇyakaṁ tathā ॥ </blockquote>{{columns-list|colwidth=15em|style=width: 600px; font-style: italic;|

{{columns-list|colwidth=15em|style=width: 600px; font-style: italic;|

*[[Isavasyopanishad]]

*[[Isavasyopanishad]]

*[[Kenopanishad]]

*[[Kenopanishad]]